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柯林斯高阶英汉双解学习词典释义
  • N-COUNT
    A fish's fins are the flat objects which stick out of its body and help it to swim and keep its balance.
  • N-COUNT
    鳍状物;(飞机等的)垂直安定面;(火箭、炸弹等的)尾翼
    A fin on something such as an aeroplane, rocket, or bomb is a flat part which sticks out and which is intended to help control its movement.
英英词典释义
  • Noun
    1. a shoe for swimming; the paddle-like front is an aid in swimming (especially underwater)