1. The map is kept at the local land registry.
   地图存放在当地的土地登记处。
2. He keeps nagging at me to get more exercise.
   他没完没了地叫我多做运动。
3. Vitamin C helps to keep colds and flu at bay.
   维生素C能预防感冒和流感。
4. Traffic regulations should always be kept to at any time.
   任何时候都要遵守交通法规。
5. The old man distrusts banks so he keeps his money at home.
   "老人不信任银行,所以把钱放在家里。"
6. "Mrs Smith is always condescending, so her neighbours keep her at arm's length."
   "史密斯夫人总是自以为高人一等,所以邻居们对她敬而远之。"
7. Cage was late home because she was kept behind at school to finish some work.
   凯奇到家较迟, 因为放学后她被留下来完成作业。
8. Absorption velocity increases with initial pressure, and keeps constant at different initial composition of uranium deuteride.
   增加混合气体的初始压力有利于铀吸氘速率的增加，氘化铀的初始氘量不影响铀的吸氘速率。
9. Do not keep yapp back at me when you do not really know the entire picture.
   你不知道整个真实情况，别对我哇啦哇啦叫不停。
10. I will take exams in two weeks, so I'm keeping my nose to the grindstone just at the moment.
    我两星期后要考试, 因而眼下正埋头苦读。
11. The goal of the mesh optimization algorithm is to re duce the number of the triangles in the mesh,and keep the accuracy of the interp olation at the same time.
    反求工程中曲面反求得到的数据模型虽然可以正确反映零件的拓扑结构，但网格上的三角形的数量一般比较大。

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