1. You're skating on thin ice when you take too much time for your lunch hour at work. 
   上班时你居然花这么长的时间午餐，你这是在冒险。
2. A lot of research work has been carried out in recent years, but much still has to be learned about the land lying under the ice. 
   近年来，进行了很多研究工作，但是关于这块冰雪覆盖的大地，仍有许多事情需要弄清楚。
3. Ice cubes; ice fragments. 
   冰块；碎冰
4. ice nuclei in atmosphere 
   大气冰核
5. International Ice Hockey Federation 
   国际冰球联合会

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• 1. 冰上作业
  hot-line work 带电操作, 带电作业...ice work 冰上作业...idle work 无功, 虚功
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