In a marsh, the surface water can sink slowly down through the soil into the rock below.

在沼泽地里，地表水会通过土壤慢慢地渗透到下面的岩层里。

youdao

In a marsh, the surface water can sink slowly down through the soil into the rock below.

在沼泽地里，地表水会通过土壤慢慢地渗透到下面的岩层里。

youdao