你在捡球时用的是身体的哪一部分?狗会用嘴巴,鸟可能会用一只爪子,猴、类人猿和人可以单用一只手,而许多动物可以用四肢来做事情,但人类用手做的事情比其他动物要多得多。我们有与其余四指相对的大拇指,所以可以用一只手抓住东西。也就是说手指和大拇指可以向彼此弯曲,从而抓住 Which part of the body are you using to pick the ball? Dogs can use their mouths. Birds may use a paw. Monkeys and people may use one hand and many animals may do things with their limbs. But humans There are so many more things done by hand than other animals. We have the thumbs opposite to the other four fingers, so we can hold things with one hand. That is to say, fingers and thumbs can bend toward each other to seize