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- textbook 618
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- hardly 531
- literacy 290
- Judge 1789
- undamaged 52
- tweed 101
- mulish 58
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- bow 701
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- resultant 46
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- hut 563
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- merciful 79
- direct speech 150
- influential 559
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- occurrence 620
- tin 683
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- countless 193
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- dollar 143
- deserve 853
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- economics 613
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- carry weight 36
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- MOISTURE 138
- harm 878
- instinctual 52
- Recital 267
- derision 137
- Drizzle 85
- tanked 48
- spoon 693
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- Glass 322
- aural 469
- sulfurous 57
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- Device 408
- ring 1803
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- java 56
- pound 954
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- solicit 181
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- Eye 708
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- area 1280
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- overcapacity 61
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- glory 561
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- tote 137
- parenthesis 168
- especially 474
- encyclopedic 124
- ecclesiastic 98
- adventurous 128
- reassure 622
- Dock 66
- keepsake 61
- vocabulary 690
- reproach 564
- Boot camp 91
- guamanian 79
- trifling 77
- Absence 110
- distinctive 377
- BRIGHT 291
- undercurrent 63
- start out 111
- all-purpose 196
- Communication 241
- colour scheme 103
- volt 467
- eventually 544
- assumed name 268
- obedient 120
- crucial 633
- renowned 155
- prise 72
- lease 131
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- listenership 58
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- cooperate 558
- surroundings 559
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- Medal 378
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- weeny 63
- Photo 238
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- Impinge 231
- Inner 166
- ancestry 132
- weal 58
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- sew up 48
- male 1188
- Relief 356
- backstab 81
- Estimable 142
- urine 65
- Curb 359
- elector 128
- Involve 510
- headboard 50
- excessive 654
- Background 210
- obvious 721
- sick 1585
- curvaceous 97
- silverfish 57
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- LEFT 98
- well-known 708
- Scour 76
- unexpurgated 62
- Cadillac 63
- whoopee 50
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- Escapade 67
- Stay in 58
- customer 738
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- spiritual 692
- sufficient 640
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- centimetre 570
- Correct 321
- scissors 639
- rowdy 150
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- inter- 202
- accessory 670
- Fleet 84
- Jesuit 56
- winded 176
- loyalty 902
- collar 740
- unhook 70
- physiotherapist 78
- suds 71
- Flatfish 71
- medicament 57
- disturb the peace 100
- from scratch 76
- essay 777
- Staycation 65
- wellington 55
- be a tribute to 42
- indefensible 75
- Subjective 126
- settler 52
- Formal 177
- Nomadic 84
- embrace 774
- scrapheap 43
- assembly 694
- suicidal 75
- urea 64
- Remove 219
- swing shift 64
- nutcase 68
- ratatouille 50
- resounding 51
- Verse 70
- Union 370
- Budge 11
- unmitigated 237
- disruption 434
- tiddlywinks 43
- joke 1548
- unconscionable 80
- mechanism 295
- solemn 768
- How 216
- health 706
- swineherd 46
- tippler 45
- tried 66
- envelope 644
- streetwalker 58
- extra 645
- Select 323
- Diploma 114
- deterrence 163
- pan 1032
- extemporaneous 115
- Propagandize 4
- agm 142
- mink 69
- let the cat out of the bag 124
- vitiate 48
- Analyse 312
- geoeconomics 106
- greener pastures 36
- Migration 160
- hold forth 73
- put down 150
- attenuated 106
- vetch 57
- singer 556
- extrinsic 92
- Algorithm 91
- soda 607
- electroencephalogram 100
- cheeseboard 106
- Conscientious 132
- Then 100
- peregrine 61
- Units for measuring weight area or volume 46
- drive up 101
- warden 68
- grimy 106
- Satisfy 412
- Catalogue 79
- figure 1045
- roll 1359
- seismology 68
- outclass 55
- motivate 558
- Hour 122
- vodcast 55
- have the courage of your (own) convictions 52
- Play along 36
- driving 127
- turn over a new leaf 2
- matriarch 60
- Glare 125
- Appraisal 242
- underage 58
- Cushion 294
- crush 738
- shut 660
- dismount 143
- Quick 344
- bme 79
- subplot 55
- flurry 182
- See 409
- tracking 63
- enquire 240
- shoeshine 54
- decilitre 87
- prayer 770
- odious 62
- CHARGE 168
- Breast 278
- on sale 87
- fancy dress 107
- ssi 53
- stupefy 93
- Defence 244
- agglutinative 82
- printer 95
- pleased 467
- lav 59
- exhaustion 475
- headmaster 487
- infertile 55
- sweater 462
- hang out 119
- deflower 152
- INDICATOR 64
- Fast 180
- mischance 51
- Target 622
- Eject 9
- Tangerine 70
- gigabyte 100
- Performance 278
- holdall 50
- fair trade 123
- end in 137
- vestment 64
- spacy 50
- experiential 167
- feel free 116
- finalize 341
- Embark on 136
- Promise 219
- widowed 75
- sulfate 58
- gather 519
- environmentally 92
- Metallic 108
- plaything 50
- sight 1897
- Promptly 104
- Unusual 283
- Originate 107
- Congregation 30
- nutritionist 49
- not in the slightest 91
- Abundant 188
- Approach 366
- inessential 56
- important 409
- beam 652
- lustful 169
- nabob 63
- checkerboard 93
- win out 121
- trammel 50
- Intoxicated 2
- fallen 135
- INSTANT 95
- provide 652
- to cause problems for someone or something 36
- sexual orientation 111
- be married to something 50
- wimpy 78
- chequers 81
- shtick 54
- curse 641
- prepackaged 43
- Establish 457
- orientation 226
- TERTIARY 86
- Georgian 3
- Obvious 629
- immigration 258
- fluoride 101
- Craft 412
- PLATFORM 113
- Plant 417
- Determiners - thesaurus 115
- sigh 908
- erratum 115
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- Performer 159
- ease 835
- chief 769
- decide 368
- sector 409
- Nicotine 112
- calvinism 84
- Frog 297
- UNCERTAIN 89
- neonatal 73
- outnumber 246
- aa 82
- Cosmetic 47
- maven 80
- pinkie 44
- twitter 90
- Dec. 59
- Rule 710
- sooner or later 49
- Bone 299
- afresh 102
- sweep 562
- round robin 89
- Television 76
- equivalency 58
- fussbudget 116
- revitalise 105
- President 809
- moment 342
- Fillet 148
- wreath 624
- Barber 155
- criss cross 90
- indicate 527
- Alas 139
- Brazen 54
- Slide 463
- Corporate 105
- day school 150
- quantify 199
- merge into the background 28
- Opinion 285
- simplistic 73
- Evolve 354
- Intend 271
- Complementary 124
- harden 590
- enlighten 216
- RESTRICT 165
- Spitfire 7
- Loss 143
- bountiful 112
- Morale 122
- orate 134
- pursuance 192
- sentinel 55
- Lecture 420
- nanometre 58
- hetero 286
- abash 70
- physician 637
- uncross 47
- filename 144
- tortfeasor 42
- gulch 153
- hub 545
- Involved in something 64
- demoralized 110
- Arm 88
- maintenance routine 72
- colleague 569
- vouchsafe 51
- Torch 192
- electron microscope 109
- FAINT 168
- dermis 106
- put 1014
- infusion 75
- suspenseful 132
- unsaleable 53
- implode 69
- rabble 77
- Types and forms of word clause or sentence 76
- thundery 53
- assist 657
- request 2093
- yet 117
- Disaster 1030
- Unlike 127
- preponderance 144
- damp 704
arduous
adjective 
/ˈɑː(r)djuəs/
/ˈɑː(r)djuəs/ - extremely difficult and involving a lot of effort 艰巨的；费力的
an arduous task 艰巨的任务
The journey was long and arduous. 旅途漫长而艰苦。
Synonyms and related wordsDifficult to do and involving a lot of effort: difficult, hard, tough...
derived word
arduously
adverb Synonyms and related words
Difficult to do and involving a lot of effort: difficult, hard, tough...
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