Prelithic
a. (人类进化中)石器使用前的
🗣️ 情景例句
Don't open the door if you don't know who it is.
如果有陌生人敲门不要开门。
Poverty makes a man mean.
贫困使人小气。
It is a world of red sandy deserts (hence its name----the Red Planet),
红色行星），