A bad-tempered person gets annoyed quickly and then talks to people in an angry way. The word is about mood and sharp words, not about being a wicked person. A kind teacher can still be bad-tempered on a tired day.

A bad-tempered person gets annoyed quicklyBad-tempered的人很容易不耐煩，and then talks to people in an angry way.然後用生氣的口氣跟人講話。The word is about mood and sharp words,這個字講的是情緒和講話的尖銳，not about being a wicked person.不是說這個人很壞。A kind teacher can still be bad-tempered on a tired day.一個很好的老師，在很累的那天也可能會bad-tempered。

We use it for people, and sometimes for animals — a bad-tempered dog snaps and growls. It can be a passing mood (bad-tempered this morning) or a habit (a bad-tempered boss).

We use it for people,這個字用在人身上，and sometimes for animals有時候也用在動物身上——— a bad-tempered dog snaps and growls.a bad-tempered dog脾氣差的狗會咬人、會低吼。It can be a passing mood (bad-tempered this morning)它可以是一時的心情（bad-tempered this morning今天早上脾氣不好），or a habit (a bad-tempered boss).也可以是習慣性的（a bad-tempered boss脾氣差的老闆）。

It is ordinary English, especially in Britain; in casual talk many people now say grumpy or in a bad mood, which feel a little lighter. Though actually, bad-tempered is stronger than a quiet frown: it suggests the person may bite with their words.

It is ordinary English, especially in Britain;這是很普通的英文，在英國特別常見；in casual talk many people now say grumpy or in a bad mood,口語裡很多人現在會說grumpy或in a bad mood，which feel a little lighter.感覺比較輕一點。Though actually, bad-tempered is stronger than a quiet frown:不過其實，bad-tempered比皺個眉頭還要強烈：it suggests the person may bite with their words.它暗示這個人講話可能會咬人。