Shall we stop down the lens?

我们要不要把光圈缩小一点?。

There's a bus-stop down the road.

路的前方有一个公共汽车站。

Stop down or you'll bang your head on the door frame.

弯下身不然门框会碰你的头的。

The sun's just come out; you'll have to stop down a bit.

太阳出来了，你得把光圈收小一点。

Can let him who in the wind and rain fights stop down rest a while?

能不能让风雨中搏斗的他停下来休息一会儿？