Ccs
[化] 中国化学会
🗣️ 情景例句
If you would supervise the refurbishing,
假如你能监督整修过程，
We must get back to first principles.
我们必须回到基本原则上来。
I suddenly felt very worried, but could not say anything.
我突然非常着急起来，但却什么也说不出来。