flash light signal造句

例句与造句

1. Sets of warning signs and sometimes flashing light signals will give you warning of works on or near the road ahead
   在前面的道路或附近，如有工程进行，将会有整套的警告标志，有时甚至会有闪动信号，警告驾驶人。
2. It's difficult to find flash light signal in a sentence. 用flash light signal造句挺难的