a
be dangerous for.对.有害
The traffic here is dangerous for children.这里的交通安全状况对儿童极为不利.
the polluted air is very dangerous _______the people's health.
the polluted air is very dangerous _______the people's health.
A.for B.to C.over D.with
选哪个?为什么?
A.for B.to C.over D.with
选哪个?为什么?
英语人气：114 ℃时间：2020-01-19 23:36:41
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