Nondegradable
不可降解的
🗣️ 情景例句
What time does the library close?
图书馆什么时候闭馆？
Every pleasure has a pain.
乐中必有苦。
To varying degrees, we all have secrets which we do not want even our closest friends to learn,
尽管我们人人都有各种大小秘密。连最亲密的朋友都不愿让他们知道，