horse around 【非正式用语】

To indulge in horseplay or frivolous activity

胡闹，捣蛋：沉溺胡闹或其他嬉戏活动

Stop horsing around and get to work.

停止胡闹，快去工作

don't change horses in midstream

(proverb)choose a sensible moment to change your mind

(谚)不要中流换马；不要在紧急关头改变策略

from the horse's mouth

(of information) from the person directly concerned or another authoritative source

（消息）直接来自有关人士的，来自权威人士的

horses for courses

(Brit. proverb)different people are suited to different things or situations

(英 谚)马有马道；物各尽其善，人各尽其能

to horse

(as a command) mount your horses!

（作为命令）上马！

you can lead (或take) a horse to water but you can'

(proverb)you can give someone an opportunity, but you can't force them to take it

(谚)牵马到水边易，逼马饮水难（你可以给人机会，但你不能逼他们去做）

horse around (或 about)

(informal)fool about

(非正式)捣蛋，鬼混胡闹

a horse of another color 或 a horse of a different color

Another matter entirely; something else.

完全另一回事；其他事情

beat a dead horse 或 flog a dead horse

To continue to pursue a cause that has no hope of success.

徒劳：继续做一件毫无成功希望的事情

To dwell tiresomely on a matter that has already been decided.

白费口舌：在一件早已决定的事情上浪费口舌

be on (one's) high horse 或 get on (one's) high horse

To be or become disdainful, superior, or conceited.

趾高气扬，目空一切，盛气凌人

hold (one's) horses

To restrain oneself.

控制自己

the horse's mouth

A source of information regarded as original or unimpeachable.

可靠信息：原始的或勿庸置疑的信息来源