yǔ / shuǐ / cháng / qī / chōng / shuā / shí / huī / yán / huì / chǎn / shēng / míng / xiǎn / de / róng / shí / zuò / yòng

雨水长期冲刷石灰岩，会产生明显的溶蚀作用。

Rainwater washing over limestone over a long period can produce obvious dissolution.