Nitrozation
亞硝化作用
??? 情景例句
I earned this, and I'm going to enjoy it.
我辛苦贏得的 我要去享受它。
Let every man praise the bridge he goes over.
飲水思源。
Yes, I see. How can they get rid of waste water in this way? What a terrible colour the sea is now! It looks as if our class won't be able to bathe at all.
是的，我看見了。他們怎么能這樣排放廢水呢？海水的顏色多么可怕呀！看來我們班同學根本不能在這里游泳。