off-guard(多用于 be caught/taken off-guard):指“毫无防备的;措手不及的”,常形容因为没有心理或实际准备而被突然发生的事影响。
/ˌɔːf ˈɡɑːrd/(美式常见)
/ˌɒf ˈɡɑːd/(英式常见)
The question caught me off-guard.
这个问题让我措手不及。
She was caught off-guard by how quickly the meeting turned into an argument, and she struggled to respond calmly.
会议很快变成争吵让她毫无防备,她一时难以冷静回应。
off-guard源自“guard(警戒、守卫)”这一概念,字面意思接近“离开警戒状态/不在戒备中”。后来在英语里固定用于描述人处于不设防的状态,尤其常与 catch/take 搭配,表示“让某人来不及准备”。