“have a short fuse”别理解成“保险丝很短”，真实意义是容易发怒；动辄发火。

【例句】
Perhaps he's irritable and has a short fuse, letting you know when he's not pleased.
也许他很烦躁，容易发怒，让你知道他不高兴的时候。

Our neighbor have a short fuse and always quarrel with others.
我们的邻居脾气暴躁总跟人吵架。