踩踏

Its pilot has to pedal hard to get it into the air.

驾驶员不得不使劲踏板才能使它飞上天。

I heard the heavy tread of Dad's boots.

我听到父亲靴子的沉重踏声。

They get the juice out of the fruit by treading it.

们踏水果从中榨汁。

He pedalled furiously up the hill.

踏板向山上骑去。

The organic litter will help to cushion trampling forces, limit the compactability of soils, release plant nutrients, and reduce the erosie forces of rainfall.

这些杂有助于缓冲踏地面的,免土壤的结块成形,释放植营养,而且减少降雨的腐蚀。