If the bite becomes hot and red, try to cool it down first.

如果被咬的地方变得又热又红，先试着把它冷却下来。

youdao

The water's boiling hot. Pour it from one cup to another repeatedly to cool it.

开水太烫，拿两个杯子折一折就凉了。

《新英汉大辞典》

The company's engineers continue to pump seawater into the reactor pressure vessel, in an effort to cool it.

为了冷却压力容器，这个公司的工程师持续地向它注入海水。

youdao

Miss Sullivan climbed with me. It was so cool up in the tree we decided to have lunch there.

VOA: special.2009.11.15

So you need first to take the liquid helium and cool it below 53 degrees Kelvin before you can do the Joule-Thomson to cool it even further to make liquid helium.

我们首先需要,把温度江都53k一下,然后利用焦耳-汤姆孙实验,来继续冷却它。

麻省理工公开课 - 热力学与动力学课程节选

so I don't know, I think it's just really cool to be able to work something from the ground up.

所以，我不知道，我就是觉得能从头开始做一件事很酷。

什么是认知科学？ - SpeakingMax英语口语达人

The spacewalkers then plugged in power and data connectors to the truss and prepared a radiator to cool it.

BBC: Spacewalkers bolt in power unit

'Then I think they added this crosspiece to cool it down a little bit and make it seem a bit more Christian.

BBC: Here comes the sun in Sweden

He is convinced that if economic relations between the two countries were to cool it would be bad for both of them.

ECONOMIST: Friends and neighbours