Incrusting
结壳, 硬皮的形成, 剥落体的形成, 积垢
🗣️ 情景例句
It's us, Susan.
是我们， Susan。
I enjoy your company.
我喜欢有你做伴。
It seems that man was making a real effort to understand the seasons 20,000 years earlier than has been supposed.
看来人类早就致力于探索四季变迁了，比人们想像的要早20，000年。