“Blow”这个单词看起来似乎很简单，但是有20多种解释。既可以是指“吹气”，也可以是指“爆炸”等等。所以，“Blow up”根据上下文也可以有多达四种解释：

爆炸；发脾气；吹风；放大。

例句：

The terrorists are threatening to blow up the plane.

恐怖分子扬言要炸毁飞机。

One false move and the bomb might blow up.

一步弄错，炸弹就可能会爆炸。

I really blew up when I learned that my girlfriend was going out with another man.

当我知道我女朋友还跟另外一个男人出去玩的时候，我可真火了。

I have to stop at the gas station to blow up my front tires.

我得到加油站去给汽车的前轮打气。

I'd like 8 by 10 blow ups of these negatives, please.

请你把这些底片放大成8X10的照片。

Blow your nose ≠ 吹鼻子

其实，“Blow your nose”的意思是：擤鼻子;擦鼻涕。

例句：

It is bad manners to blow your nose at the table.

吃饭时擦鼻涕是不礼貌的行为。

“Blow to”是什么意思?

其实，“Blow to”的意思是：打击。

例句：

Losing his job was a real blow to his pride.

失掉工作对他的自尊是个沉重的打击。

Jimmy was still dazed by the blow to his head.

吉米由于头部被击，仍然神志不清。

出处：头条号 @英语听力课堂