1，更小的孩子也需要这样，因为他们的安全可能受到威胁。
there are also younger children involved here, and their safety may be at stake.
2，如果紧急救援不能马上到达该市，千万人的生命危在旦夕。
thousands of lives will be at stake if emergency aid does not arrive in the city soon.
rein in"控制，放慢"
for instance:
1,the state faces possible bankruptcy unless it finds a way to rein in costs.
除非马上能找到控制成本的方法，否则它可能面临破产。
practice：
1，你应该严加控制自己的开支，否则你买不起昂贵的小轿车了。
try to translate this sentence into english.
reference:
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作者: sunnyraintsk 时间: 2011-9-30 22:27
本帖最后由 sunnyraintsk 于 2011-10-2 10:47 编辑
你应该严加控制自己的开支，否则你买不起昂贵的小轿车了。
You should rein in your expenses or you can not afford the expensive car.作者: mapleleaf 时间: 2011-10-1 07:16
You should rein in your expenses ,or you can't afford an expensive car.作者: Andy-Lee 时间: 2011-11-26 12:38
1，你应该严加控制自己的开支，否则你买不起昂贵的小轿车了。
you should rein in your charge,if not you will have not enough money to pay the expensive car作者: xuqiulin 时间: 2011-11-28 23:08
you should rein in your spending or you'll can not arrord a expensive car
