轻松练外语

Unit 3

What Should We Do?

traffic lights
红绿灯
window
窗户
behind
在……之后
car
小汽车
bus stop
公共汽车站
should
应该
shouldn't
不应该
wear a seat belt
系安全带
throw ... out of
把……扔出
watch out for
小心提防
line up
排队
at the bus stop
在公交车站
know ... well
熟知