to destroy something or kill someone with a bomb, or to be destroyed or killed by a bomb

They threatened to blow up the plane if their demands were not met. 他们威胁说如果要求得不到满足就炸毁飞机。

He drove over a landmine and his Jeep blew up. 他开的吉普碰上地雷被炸毁了。

to fill something with air

Would you help me blow up these balloons? 请你帮我给这些气球充上气好吗？

to print a photograph or picture in a larger size

When a storm blows up, it begins.

to suddenly become very angry

My dad blew up (at me) when he saw the bill. 我爸爸看到账单后（对我）大发雷霆。