instant
moment
second【导航词义:瞬间,片刻】
instant n. 片刻,刹那
〔辨析〕指极短的时间,如转瞬即逝的刹那间,通常用单数。
〔例证〕
Please hold on! She will be back in an instant.
请别挂断电话!她马上回来。
The instant I saw him, I knew he was the policeman who had helped me carry the box.
我一看见他便认出他就是那个曾经帮我搬过箱子的警察。
moment n. 片刻
〔辨析〕指很短的一段时间,多用于日常口语。
〔例证〕
Can you spare a few moments to fill out this questionnaire?
你能抽点时间填写这个问卷调查吗?
He will come back to see you in a moment.
他马上会回来见你的。
second n. 一会儿,片刻
〔辨析〕指极为短暂的一段时间,常可与 moment 换用。
〔例证〕
Don't worry, and he'll be back in a second/moment.
别担心,他一会儿就回来。
Just a second/moment, the reporter will come to interview you.
稍等片刻,那名记者马上会过来采访你。