1. Haze is often caused by heat.
    薄雾常因热气而起。

2. Here there is nothing unnatural, such as is often found in language lessons in schools, when one talks about ice and snow in June or scorching heat in January.
    这里没有任何不合自然规律的东西，而在一些学校的语言课上，人们却常常在六月谈论冰雪或是在一月谈论灼热的热浪。

3. A steam engine transforms heat into energy.
    蒸汽机将热转变成能.

4. At times the heat was so fierce they could only travel at night, resting during the day in hammocks slung between trees.
    有时候，炎热是如此的酷烈，以致于他们只能在夜间行走，白天在两棵树之间悬挂的吊床上休息。

5. Sand loses its heat quickly.
    沙散热快。

6. Spencer noticed the waves had made a chocolate bar (块) in his pocket soft. Could these waves be used to heat food?
    斯潘塞发现，这类电波将他口袋里的一块巧克力软化了。那末，这些无线电波可不可以用来加热食物呢？

7. Please heat the milk.
    请把牛奶加热.

8. Probably then it gave off light and heat and sparkled from far off, like a star.
    当时地球很可能既发光、又放热，从远处望去就像一颗耀眼的星星，

9. Remove the rain cover and let the sun heat the sleeping bag.
    把雨蓬拿开，让太阳把睡袋晒热。

10. Our own warm atmosphere and the heat generated by the telescope would make it impossible to detect objects as small as planets.
    地球周围温暖的大气层和望远镜散出的热量使得我们根本不可能找到比行星更小的物体。