Ppt.
[医] 沉淀[物], 制备的, 精制的
🗣️ 情景例句
We enjoyed our trip to Europe.
这次到欧洲旅行，我们非常愉快。
It was not until the accident happened that I became aware of my own foolishness.
直到事故发生我才意识到我自己的愚蠢。
'Everyone's losing money these days,' he said.
“现在大家都在丢钱，”他说。