Eolithic
a. 原始石器时代的
🗣️ 情景例句
You won't believe it, Grandpa,
你绝不会相信， 爷爷，
I ought to keep cool.
我应该保持冷静。
This may be illustrated by comparing the position of a nation with that of a private business enterprise.
把国家的状况同私人企业的状况加以比较，就可以看清这个问题。