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TOEFL IELTS BNC: 6611 COCA: 5923
arc
noun [C] /ɑː(r)k/
singulararc
pluralarcs
Related words
  1. 1
    a curved shape or line 弧形

    The mountains formed an arc around the north of the city. 山脉沿城市北部形成一个弧形。

     Synonyms and related words
    Lines and flat surfaces: arc, axis, chord...
    1. a.
      a movement that follows a curved line 弧线运动

      He swung his torch round in a wide arc. 他晃动火把画着大弧线。

       Synonyms and related words
  2. 2
    maths a part of the line that forms the outside of a circle (圆的)弧线
     Synonyms and related words
    Lines and flat surfaces: arc, axis, chord...
  3. 3
    physics a flash of light that happens when electricity flows between two separated points 电弧;弧光
     Synonyms and related words
arc
verb [I] /ɑː(r)k/
present tense
I/you/we/theyarc
he/she/itarcs
present participlearcing
past tensearced
past participlearced
  1. 1
    to move somewhere in the shape of an arc 沿弧线运动;循弧线行进
     Synonyms and related words
    To move in circles or twists: spin, revolve, whirl...
  2. 2
    science if electricity arcs, it makes a flash of light as it flows between two separate points 形成电弧
     Synonyms and related words

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