Ppt.
[医] 沉淀[物], 制备的, 精制的
🗣️ 情景例句
Designing dresses is a career
设计时装是一种职业
I'm sorry to interrupt, but I'd like you to explain that a little more.
很抱歉，我插个嘴，我希望你多解释一些。
I doubted whether the story is true.
我怀疑那故事是不是真的。