0 New HSK word(s):

0 Old HSK word(s):

风化作用 [feng1 hua4 zuo4 yong4]

Verwitterung (S)
岩石的风化作用 [yan2 shi2 de5 feng1 hua4 zuo4 yong4]

Gesteinsverwitterung (S, Geol)