Eolithic
a. 原始石器时代的
🗣️ 情景例句
Growing up without a mother is difficult.
在没有母亲的情况下长大不简单。
I don't know. You may look in the TV Guide.
我不知道，你可以看看《电视报》。
I'm sorry, I don't know. You'd better ask that policeman.
对不起，我不知道。你最好问问那位警察。