Chemex
化学交换(同位素浓缩)过程
🗣️ 情景例句
is going to win this seat on the board.
稳登联合校董会董事的宝座了。
Laugh, and the world laughs with you; weep, and you weep alone.
你笑，人人陪你笑；你哭，惟独你自哭。
A man was lying in the box on top of a pile of woolen goods.
箱内有一个人正躺在一堆毛织品之上。