Limonitization
褐铁化作用
🗣️ 情景例句
I know a good spot for-
我知道一个好地点干-
Graduation is often the last moment of childhood.
毕业往往意味着儿童时期的结束。
This cellar room is very damp in the rainy season.
这间地下室在雨季非常潮湿。