If you are grouchy, you are in a bad temper, especially because you are tired — short with people, ready to complain, not much fun to sit next to.

If you are grouchy如果你grouchy, you are in a bad temper你脾氣不好, especially because you are tired尤其是因為累了 — short with people對人沒耐性, ready to complain動不動就抱怨, not much fun to sit next to坐在旁邊不怎麼愉快.

It is a homely, informal adjective, originally American college slang from the 1890s, and it still sounds casual and a bit fond, the way a family talks.

It它 is a homely, informal adjective是個家常、非正式的形容詞, originally American college slang from the 1890s原本是1890年代美國大學生的俚語, and而且 it still sounds casual and a bit fond聽起來依然隨性、還帶點親暱, the way a family talks就像一家人說話的感覺.

You can be grouchy at any age; though actually, English often hangs it on mornings, hunger, heat, and old people in stories, so students sometimes think it only belongs to grumpy grandfathers.

You你 can be grouchy at any age可以在任何年紀grouchy; though actually不過事實上, English英文 often hangs it on mornings, hunger, heat, and old people in stories常常把這個詞掛在早晨、飢餓、悶熱和故事裡的老人身上, so所以 students學生 sometimes think it only belongs to grumpy grandfathers有時候會以為這個詞只屬於愛抱怨的老爺爺.

It is milder than furious and closer to grumpy. It describes a passing mood more than a fixed character, unless you call someone a grouch, which is the person who is like that a lot.

It它 is milder than furious比furious（狂怒）溫和, and而 closer to grumpy比較接近grumpy（愛抱怨）. It它 describes a passing mood更像在描述一時的情緒 more than a fixed character而不是固定的性格, unless除非 you call someone a grouch你把某人叫做grouch（愛抱怨的人）, which是指 is the person who is like that a lot那種常常這樣的人.