1. For health´s sake,I suggest you never eat in the night market.
    为了健康的缘故,我建议你永远不要在夜市吃.

2. For more than two months, the sun never sets, and there is no night.
    两个多月里太阳一直不落，没有夜晚。

3. For years Sundback lay awake half the night trying to solve the problem. In 1913 he designed a hookless fastener that worked.
    一连几年，森德贝克夜不能寐，试图解决这一问题。1913年，他设计了一种性能理想的无钩扣件。

4. For example, the Chinese have noted that before an earthquake, hens' behavior changes — they refuse to enter their cages at night.
    例如，中国人已经注意到，地震之前鸡的行为有异常：它们夜晚不肯进笼。