单词：internal heat of evaporation
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实用英语
AS IT IS 2015-11-03 More of Us to Go Thirsty As Earth Dries Up Water supplies around the planet are running dry at an alarming rate. Scientists say the world is experiencing a shortage of fresh water. It will only worsen as the population grows and t
2015年VOA慢速英语(十一)月
It was a clear, cold, winter evening, and all the Sinclairs but Annie had gone out for a neighborly visit. 这是一个清澈寒冷的冬夜，辛克莱一家除安妮外都去邻居家做客去了。 She had resolved to stay at home and study a long
美国语文第四册
See the shadow, the stick has moved a bit,put a rock on the other end, and you get a line here. 看这影子 已经移动了一点 放块石头在新的末端上 这样就会有条直线 If you stand on that line,face the stick, you're gonna be headi
荒野求生
After its fishing was finished and its air supply renewed, 鱼捕完了，空气调换了， I thought the Nautilus would resume its underwater excursion, 我想诺第留斯号又要作海底旅行了； and I was getting ready to return to my stater
《海底两万里》中英双语有声读物
Why does blowing on hot soup help to cool it off? Its because of evaporation. Evaporation cools down a liquid because the most energetic molecules leap off the surface and leave the slower-moving molecules behind. Slower-moving means lower temperatur
英语时差8，16