代表用力过度。避免让人出汗的活动，潮湿的衣服和寒冷的天气是危险组合。
The O stands for overexertion. Avoid activities that will make you sweaty. Wet clothes and cold weather are a dangerous combination.
寒冷的天气是另一个因素，因为它可能提高血压，干扰到心脏部分的血流，并且增加血栓形成的倾向。
Cold weather is another contributor because it can boost blood pressure, interrupt blood flow to part of the heart, and increase the tendency for blood clots to form.
天气寒冷又下着雨，最糟的是我们得走着回家。
It was cold and raining, and, to crown it all, we had to walk home.
通常情况下，飞机不会在2月到次年10月之间经行极地，因为在漆黑、寒冷的天气下飞行是很危险的。
Normally planes don't go to the polar post from February to October because of the dangers of flying in the pitch-dark and cold.
最严重的是在19年，因为寒冷的天气和无风的条件，污染的空气覆盖了城市，这震惊了整个世界。
The heaviest, which shocked the world, was in 19 because of cold weather and windless conditions, polluted air covered the city.
极端寒冷的天气和氧气过少是两个主要的困难。
Terribly cold weather and too little oxygen were two main difficulties.
答案似乎是通过一段时间的寒冷天气后关闭基因完成。
The answer, it seems, is by turning off a gene after a certain period of cold weather.
提振生产力的第三个原因是，寒冷的天气令人们乐意呆在办公室里。
The third reason for the productivity boost is that cold weather makes the office a good place to be.
同类工厂，工人日薪是不低于150元的，而且在11月份到三月份间，因为寒冷的天气，工人也是不需要工作的。
In similar factories, the average daily salary for a worker is at least 150 yuan, and laborers do not need to work between November to March due to cold weather, Kong said.
对于洗澡的人，这些风险是受到温度的影响，寒冷的天气更多人心跳停止。
For bathers, the risk was tied to outside temperatures, with more cardiac arrests on colder days.
准备一个温暖天气下比赛的关键是，你在寒冷天气下的训练就是要去适应这种温暖的天气。
The key to being ready to race in warmer weather when you're training in the cold weather is to get acclimatized to warm weather.
尽管天气寒冷，这张照片显示云仍然是由水组成的而不是冰。
Despite the chill, this image reveals that the clouds were made of water, not ice.
流感的初期阶段很突然，这让健康专家都猝不及防，可能部分原因是由于天气寒冷造成的。
The initial phase has been very steep, taking health experts off guard. That might be in part because of the cold weather.
在当前的寒冷天气下，许多农村家庭的习惯是把家禽圈养在家中，人与家禽之间的接触可能已经增加。
Contact between people and poultry has likely increased during the present cold weather, when the custom among many rural households is to bring poultry into their homes.
计划一次夏季度假旅行，是逃离寒冷天气的最好办法。
Making plans for a summer break is perfect cold weather escapism.
参加哈尔滨冰雪狂欢节的游客需要多穿几件衣服，当数位相机停止工作时，你也不必惊慌，因为那儿的天气实在是太寒冷了。
Visitors to Harbin's popular ice and snow festival should dress in layers -- and don't be surprised if you're digital camera acts up because of the cold weather.
不幸的是，寒冷的天气甚至可以令最积极的锻炼者泄气。
Unfortunately, cold weather can discourage even the most motivated exercisers.
在寒冷的天气里，全身热量的50%是通过头部散发的。
During cold weather, you lose up to 50 percent of your body heat through your head.
关于感冒的误解是如此之多，其中之一就是天气。你确实不是因为寒冷而得的感冒
There are so many misconceptions about colds, including the one about the weather. You don't actually catch cold from the cold
寒冷的天气最有可能损害或杀死作物的是使其没有足够的水分。
Cold weather is most likely to damage or kill plants, that do not have enough moisture.
在这个国家，十二月是一年当中天气最寒冷的一个月。
雨夹雪是最讨人厌的天气，因为它又寒冷又潮湿。
Sleet is my least favorite kind of weather because it is both cold and wet.
在寒冷天气下探伤，是一件富于挑战的工作。
It is a challenge job to detect the defects in cold weather.
我更喜欢地铁，尤其是当天气寒冷或者下雨的时候。
I prefer the subway, especially when the weather is cold or wet.
拍照提示：当在寒冷的天气，或雪，冰雹等极端条件下拍摄，最重要的是不要在室外换镜头。
Photo Tip: When shooting in cold weather, or extreme conditions such as snow and sleet, it's important not to change your lenses outdoors.
天气是寒冷的，锐利的-使而且锐利清除。
寒冷的天气需要美食的慰藉，幸运的是，煲汤这个极佳的约会点子对烹饪技巧的要求并不高。
Cold weather calls for comfort food and, luckily, making soup can be a great date idea that doesn't require much culinary skill.
那时的天气是深秋时节吧，具体的实在记不清了，只是记得也是这样寒冷的天气。
Is it in the deep autumn season? I can't remember clearly, but just as this chilliness.
那时的天气是深秋时节吧，具体的实在记不清了，只是记得也是这样寒冷的天气。
Is it in the deep autumn season? I can't remember clearly, but just as this chilliness.
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