Birds sit on their eggs to keep them warm.
小鸟是站在它们的蛋上来给它们的蛋保暖的。
Black plastic mulch can help keep them warm.
黑色塑胶薄膜对保持它们温度。
Because she had to sit on eggs to keep them warm.
因为她必须坐在窝上孵蛋。
You need extra down at your feet to keep them warm.
您需要额外的下跌，在您的脚，让他们御寒。
Their thick coat and fat keep them warm in winter.
它们的厚厚的皮毛和脂肪在冬天里可以保暖。
To keep them warm, and to make them come out of their shells.
好保持鸡蛋暖和，好让小鸡出壳呀。
After a hen lays her eggs, she sits on them to keep them warm.
母鸡下了蛋之后，她坐在那些蛋上让他们坚持暖和。
In spring, people put covers over plants to keep them warm at night.
春天，人们晚上在植物上放置一些覆盖物来保持它们的温度。
They also used fire to give them light and keep them warm in winter.
他们也用火照明，在冬季用火取暖。
Both the father bird and mother bird sit on the eggs to keep them warm.
鸟爸爸和鸟妈妈伏在蛋上为它们取暖。
When winter comes, people on the streets wear gloves to keep them warm.
当冬天来临的时候，街上的人们带手套来保暖。
You have the responsibility to watch over others and to help keep them warm and safe.
你有责任关注他人，让他人感受到温暖和安全。
Snow monkeys live farther north than any other monkey. Their long coats keep them warm.
雪猴通常比其它猴子生活的更往北一些的寒冷地区，为了保暖，他们的毛都比较长。
In addition, they have the knowledge on how to make a fire to keep them warm and heat their foods.
另外，他们懂得用火保暖，加热食物。
The same muscles puff up the feathers of birds and the fur of mammals on cold days to help keep them warm.
在鸟类中也有同样的肌肉，在冬天它使得鸟的羽毛膨胀，以达到御寒的目的。哺乳动物也通过毛发来御寒。
It began with the approach of two or three, who hung about the closed wooden doors and beat their feet to keep them warm.
开始只来了两三个人，他们在关着的木门附近溜达，一边跺着脚取暖。
'I haven't got a shepherd's hut here, as I used to have at Norcombe,' he explained. 'These new lambs would die if I couldn't keep them warm for a while.
“我在这儿没有牧羊人小屋，过去在诺科姆我有一个，”他解释说。“如果不让这几只新生的羊羔暖和一会儿，他们会死的。”
Crammed in alongside the food was a ton of coal and 100 boxes of firewood for the antique French iron stove that keep them warm, plus diesel oil for a motor.
在食物旁边放的是一吨煤，一百箱柴火，用于为两人取暖的古董法式铁炉，另外还有马达用的柴油。
These giants can stand three meters tall and weigh over 500 kg, and they spend their lives traveling throughout the Arctic. Two layers of fur keep them warm.
这些庞然大物高达三米，体重超过五百公斤，他们一生都在北极到处活动。
Today, commercial aircraft remove ice that accumulates on wings in-flight by redirecting hot air from the jet engines to the leading edge of the wings to keep them warm.
今天，商用飞机主要靠把从喷气式引擎排出的热空气引导到机翼的边缘，使它们变暖，以此来达到除冰的目的。
It essentially turns the head into a pillow, with an opening for the mouth and nose to breathe and holes on each side to rest the hands or keep them warm while people nap on the desk.
戴上这个枕头之后，你的头就变成了一个枕头，前面有口鼻呼吸的小孔，两侧可以把手伸进去保暖，趴在桌上也不会觉得不舒服。
Having thick soups can help keep people warm and can fill them up, so hunger is no longer a problem!
喝浓汤既能保暖又能填饱肚子，所以饥饿不再是问题！
Drinking hot water helped them keep warm.
喝热水帮助他们保暖。
People also put small bags of hot water in them to keep dinners warm.
人们还会在里面放上小袋的热水，用来保温饭菜。
All of them had warm words: "Keep moving forward."
他们都说了温暖的话：“继续前进。”
Eating thick soups can help keep people warm and can fill them up.
喝浓汤既保暖又充饥。
Eating thick soups can help keep people warm and can fill them up.
喝浓汤既保暖又充饥。
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