Dcf
[医] 直接离心浮选[法]
🗣️ 情景例句
Don't let us keep you from your math tutoring, Robbie.
别让我们妨碍你的数学家教， Robbie。
Doubt is the key of knowledge.
怀疑乃知识的钥匙。
There she studied the teaching of deafblind children.
在那里，她学习聋盲儿童的教学工作。