Melanization
黑化作用
🗣️ 情景例句
I care about the school buildings in need of paint.
我关心学校的建筑物需要粉刷。
I need small change.
我需要零钱。
Excuse me, please. Where's the nearest men's room?
劳驾，离这儿最近的男厕所在哪儿？