Cheka
n. 契卡
🗣️ 情景例句
Let's go to the food court and get something to eat.
咱们去食品部吃点东西吧。
Acl!
啊！
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。