词典释义：
过马路时要小心
Be careful when you cross the road!
当你过马路时小心点。
Be careful when you cross the road.
当你过马路时要小心。
You must be careful when you cross the road.
你过马路时务必要小心。
You must be as careful as you could (=as careful as possible) when you cross the road.
当你过马路的时候，你一定要尽可能的小心。
work license是什么意思_work license单词用法
to devote to是什么意思_to devote to单词用法
work long hours是什么意思_work long hours单词用法
a majority of scientific pers是什么意思_a majority of scientific pers单词用法
a majority of people是什么意思_a majority of people单词用法
a major issue是什么意思_a major issue单词用法
