flag down

US /flæɡ daʊn/
UK /flæɡ daʊn/
"flag down" picture
1.

拦下, 示意停车

to signal to a driver or rider to stop

:
We had to flag down a taxi in the rain.
我们不得不在雨中拦下一辆出租车。
She tried to flag down a passing car for help.
她试图拦下一辆路过的汽车寻求帮助。