Ice needs heat to melt.

冰融化需要热量。

He adjusted himself very quickly to the heat of the country.

他很快适应了这个国家的炎热天气。

Cook food over a low / medium / high heat.

用小/中/旺火烹煮食物。

in the heat of the argument

在激烈的争论中

The heat wasn't on, and the house was freezing.

暖气没有开，房子里冰冷。

Heat the milk until it boils.

把牛奶煮开为止。