🔍 牛津詞典
🔍 朗文詞典
🔍 劍橋詞典
🔍 柯林斯詞典
🔍 麥美倫詞典 🎯
🔍 韋氏詞典

檢索以下詞典:
(Mr. Ng 不推薦使用 Google 翻譯!)
最近搜尋:
BNC: 21380 COCA: 17516
keystone
noun [C] [usually singular] /ˈkiːˌstəʊn/
singularkeystone
pluralkeystones
Related words
  1. 1
    something that is very important to a plan, arrangement, or set of beliefs (计划、安排或信仰的)基础,基石,主旨
     Synonyms and related words
    Important thing or detail: feature, priority, element...
  2. 2
    a stone at the top of an arch that keeps the structure together 拱顶石
     Synonyms and related words
    Frames and supports for structures: frame, foundation, support...

👨🏻‍🏫 Mr. Ng 麥美倫詞典 📚 – macmillan.mister5️⃣.net
切換為繁體中文
Site Uptime