Chemical deposition
[计] 化学淀积
🧩 词语组成解析
🗣️ 情景例句
As a matter of fact,
事实上，
You look very serious about something.
你似乎有很严重的事。
The vicar has been asked to have the tree cut down, but so far he has refused.
人们曾请求教区的牧师叫人把树砍掉，但他直到现在也没有同意。