Almost always used in the phrase 'catch someone red-handed': to catch a person at the exact moment they are doing something wrong, so there is nothing to argue about. The strength of the phrase is the timing — not found out later, not suspected, but caught in the act, with the evidence right there in their hands.

Almost always used in the phrase 'catch someone red-handed'幾乎都用在「當場抓到某人」這個片語裡: to catch a person at the exact moment they are doing something wrong意思是在某人做壞事的當下抓到他, so there is nothing to argue about所以沒什麼好爭辯的。The strength of the phrase is the timing這個片語的重點在於時機 — not found out later不是事後才發現, not suspected也不是被懷疑, but caught in the act而是當場被抓到, with the evidence right there in their hands證據就在他們手上。

It is used for real crime (a thief caught inside the shop) and just as often for small, ordinary wrongs, half-joking: a child caught taking biscuits, a colleague caught reading someone else's screen.

It is used for real crime這個說法可以用在真正的犯罪上 (a thief caught inside the shop像小偷在店裡被抓到) and just as often for small, ordinary wrongs也常常用在小小的、平常的過錯上, half-joking帶點開玩笑的意味: a child caught taking biscuits像小孩偷拿餅乾被抓到, a colleague caught reading someone else's screen或同事偷看別人螢幕被抓到。

It goes after the verb, not before a noun; you catch someone red-handed, you get caught red-handed. 'Caught' is by far the usual verb.

It goes after the verb這個字放在動詞後面, not before a noun不放在名詞前面; you catch someone red-handed你會說catch someone red-handed, you get caught red-handed或get caught red-handed。'Caught'Caught這個字 is by far the usual verb是目前為止最常用的動詞。