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1·Winter begins on the shortest day of the year.

冬天从一年中最短的一天开始。

2·The sea and air grow warmer; the polar air of winter begins its gradual retreat.

海洋和天空变得温暖，冬天的极地气团开始逐渐减弱。

3·If your current plan to stay healthy this winter begins and ends at drinking extra orange juice, you might want to rethink that strategy.

今年冬天，如果你目前的保持健康计划从头到尾都是多喝果汁的话，那你可能就要重新考虑一下你的策略了。

4·By the time winter begins, coastal waters are thoroughly mixed, with virtually no temperature or salinity differences between surface and bottom waters.

到冬季快要开始的时候，沿岸的海水已经彻底混合，表层和底层的水几乎没有什么温度差和盐度差了。

5·It is always a good idea to keep a lot of necessary supplies in the home even before winter begins. These supplies include food, medicine, clean water, and extra power supplies.

在冬天来临之前，准备大量的必需物品总是个不错的想法，这些东西包括食物、药品、干净水和额外的电源。

6·WFP officials say as the winter snow begins to melt and high mountain paths begin to clear, local leaders and international aid workers are reporting some people are dying of starvation.

世界粮食计划署官员说，随着冬雪开始融化，高海拔的山路开始畅通，当地领导人和国际救援人员报告说一些人正死于饥饿。

7·Seasonal affective disorder—depression that begins during the winter months and lifts during spring and summer.

季节性情绪障碍——抑郁症开始于冬季，在春季和夏季就消退。

8·The process begins with his hauling sacks of winter wheat and ends with his delivering bottles to customers.

该过程从他拖回来的冬麦开始，到将瓶装酒送到客户手上为止。

9·The American winter holiday season begins when Thanksgiving ends.

美国的寒假就是在感恩节结束后开始的。

10·Winter is the fourth and last season of the year. It begins around December. The weather is cold and it often snows.

冬天是一年的第四个季节和最后一个季节。它大约开始于十二月。天气很冷并且经常下雪。