Ppt.
[医] 沉淀[物], 制备的, 精制的
🗣️ 情景例句
He is a good speaker of English.
他英语说得非常流利。
She will go into business when she likes to.
她想经商时就会去经商。
I'm really looking forward to this.
我期待这次参观已久了。