The new traffic rule has come into effect since March.新交通规则自三月份起生效.You should understand the traffic rule by now. You've had it explained often enough.到现在你应该理解这条交通规则了, 已经给你解释得够多了.But please note, you should ride the...

traffic rule的音标：traffic rule的英式发音音标为：['træfik ru:l]traffic rule的美式发音音标为：['træfɪk rul]...

n.交通规则...