Ppt.
[医] 沉淀[物], 制备的, 精制的
🗣️ 情景例句
That took place right after the First World War, didn't it?
它就发生在第一次世界大战之后，是吗？
Call me tomorrow if you have time.
明天要有时间就给我打个电话。
One year for our birthday Mom gave us both a T-shirt two green T-shirts!
有一年过生日，妈妈送给我俩各一件T恤衫--两件绿的T恤衫。