Ppt.
[医] 沉淀[物], 制备的, 精制的
🗣️ 情景例句
OK. But don't delay too long. Or that trip will be all booked.
好，但不要拖太久，否则会订满的。
The man is a piano accompanist.
这个人是钢琴伴奏者。
I think we must buy some meat for supper.
我想我必须买一些晚饭吃的肉。