a small safety part in an electrical device or piece of machinery that causes it to stop working if the electric current is too high, and so prevents fires or other dangers

My hairdryer's stopped working - I think the fuse has blown (= broken). 我的吹风机坏了——我想可能是保险丝断了。

Have you tried changing the fuse? 你试没试过换根保险丝？

a string or piece of paper connected to a firework or other explosive product by which it is lit, or a device inside a bomb that causes it to explode after a fixed length of time or when it hits or is near something

He lit the fuse and ran. 他点燃了导火索后就跑了。

have a short fuseidiom 十分易怒

to join together physically, or to join things together physically

Genes determine how we develop from the moment the sperm fuses with the egg. 从精子和卵子结合的那一刻起，基因就决定了我们会如何成长。

The bones of the skull are not properly fused at birth. 出生的时候头骨结合得并不紧密。

Fusing the vertebrae together seemed to be her only option.

to melt or make two things melt together, especially at a high temperature

The heat of the fire fused many of the machine's parts together. 炽灼的大火把机器的很多部件都熔化在了一起。

When an electrical device or piece of machinery fuses, or when someone or something fuses it, it stops working because the electric current is too high.

Either my headlights have fused or the bulbs have gone. 要么是车前灯的保险丝断了，要么是灯泡坏了。

The kids were messing around with the switches and they fused the lights. 孩子们瞎捣鼓开关，结果把灯的保险丝烧断了。