Tetrachloride
[医] 四氯化物
🗣️ 情景例句
and I can give you and Mrs. Stewart a month of classes free.
我让你和你太太免费上一个月的课。
When is the most convenient time for us to meet?
我们什么时候见面最方便呢？
What are you doing?
你在干什么？