Incrusting
结壳, 硬皮的形成, 剥落体的形成, 积垢
🗣️ 情景例句
You may accept this draft by signing.
请你们签字"承兑。
Keep your fingers crossed.
为成功祈祷吧。
The problem now facing humanity is: What is going to be done with all this knowledge?
用这些知识去做什么？