The human thumb is opposable.人类的拇指与其他四指对置.The thumb is opposable to the forefinger.大拇指可与食指相对.The opposable thumb allows them to pick up small items and grip objects from Both sides.利用拇指和手指可以捡拾小东西和抓握物体....

adj.可反对的...

opposable的音标：opposable的英式发音音标为：[ə'pəʊzəbl]opposable的美式发音音标为：[ə'poʊzəbəl]...