Hayley教口語，“無緣無故發(fā)火”用英語怎么說？

to speak to someone in a quick, angry way, for no good reason

無緣由地對(duì)…發(fā)火，莫名其妙地對(duì)…發(fā)脾氣

I only asked if I could help - there's no need to bite my head off!

我只是問了一下我能否幫上忙——沒必要無緣無故地對(duì)我發(fā)火!

" I know it is, Harry, so will you please stop biting my head off? " said Hermione wearily.

“我知道是事實(shí)，哈利，你能不能不要這樣沖我大聲嚷嚷?”赫敏不耐煩地說，