skims

We watched a child skimming stones across the lake.

我们看着一个孩子在湖上打水漂。

I've only skimmed (through/over) his letter; I haven't read it carefully yet.

我只是大致看了一遍他的来信，还没有细读。

Strain the cooking liquid and skim off the fat.

把熬好的汤过滤，撇去油脂。