ball of the thumb

名词 n.
中文释义

英文释义

名词 n.
  1. The fleshy portion, opposite the nail, of the first segment (first phalange) of the human thumb. informal
  2. The most fleshy portion of the palm of the human hand, located adjacent to the second joint of the thumb: the thenar eminence.

词形变化

balls of the thumb plural
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