opposable

基本解釋

Apes and monkeys also have opposable thumbs on their feet that help their dexterity.
類人猿和猴子腳部也有增加其靈敏性的對生拇指。
They are the only mammals on the earth, with such obvious similarities as hands (with opposable thumbs), brain function, and facial expressions.
他們是世界上唯一的與人類如此相似的哺乳動物，比如手（相反的拇指），大腦功能和面部表情。
Contrary to popular misconceptions, humans are not the only animals to possess opposable thumbs -- most primates do. (Unlike the rest of the great apes, we don't have opposable big toes on our feet.)
和目前普遍流傳的訛傳形成鮮明對比的是，人類拇指并不是唯一可靈活伸屈的，大部分靈長類動物都有（而和其他大型猿類不同，人類腳趾靈活性甚至還不如他們）。

Second, it features opposable thumbs, which enables it to be used for right and left hand applications.
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Opposable thumbs are thumbs that can be put opposite the fingers of the same hand, so that objects can be picked up and held.