I think I felt a drop of rain.

我好像感觉到掉雨点儿了。

《牛津词典》

I just felt a drop of rain.

我刚才感到有一滴雨掉在身上。

youdao

But ten days passed, and not a drop of rain came down.

但十天过去了，没有一滴雨降落下来。

youdao

We hit it, the steering wheel went dead and the car began to glide, ghosting toward the shoulder, which looked about four feet wide and well below the surface of the new blacktop it was a big drop-off of five or six inches and the shoulder was red clay drenched with rain.

WSJ: Hal Holbrook Remembers a Road Show Wreck | Traveler's Tale