气候的周期性变化使河流发生周期性的堆积与侵蚀，会形成一系列阶地。

Periodic climate changes cause periodic river accumulation and erosion, resulting in a series of benches.

youdao

气候的周期性变化使河流发生周期性的堆积与侵蚀，会形成一系列阶地。

Periodic climate changes cause periodic river accumulation and erosion, resulting in a series of benches.

youdao