We should do something about our traffic problem.
我们要对我们的交通问题采取一些措施。
I haven't got a clue about the traffic problem.
这个交通问题我一点儿也不知道。
It 's time that something was done about the traffic problem downtown.
现在是我们该结束讲座的时候了。
It 's time that something was done about the traffic problem downtown.
现在是我们该结束讲座的时候了。
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