(1)片刻，瞬间(very short period of time)[C]：Wait(for)a～.等一等。think/hesitate/stand/be quiet (for) a～考虑/犹豫/站立/安静一会儿;Speak to me for a～. 和我谈一会儿。One～please.请稍候。Just a～.请等一下。She won't be a～.她马上就来。be ready/be back/be here/be over in a～一会儿就准备好/回来/到这里/结束;after a few～s' silence/thought 安静/思考片刻后;I shall only be a～.我一会儿就回来。A few～s later she heard footsteps.过了一会儿，她听到了脚步声。Help arrived not a～too soon.救援来得太晚了。〖同〗minute，instant，second;

(2)时刻(候)(certain point in time)[U，the～]：the～of truth关键时刻;the happiest～of one's life一生中最幸福的时刻;At this precise/At that very～，the phone rang. 就在这/那时，电话铃响了。arrive at any～随时都可能到达;He's busy/He's not here at the～. 他眼下很忙/不在这里。〖同〗instant;

(3)重要性(importance;consequence)[U][N(of)](fml)：an event of (great)～一个重要的事件;a problem/decision/discovery of (great)～一个重要的问题/决定/发现;a discussion of no/little/small/some/great～毫不/没什么/有点/有些/极其重要的讨论;Your opinion is of no/small/great～to me.你的看法对我不/有些/至关重要。This is not without～.这一事实并非无足轻重。

(4)时机，机会(occasion;time for doing sth)[C]：a suitable～to do sth做事的合适时机;wait for the right～等候恰当的时机;choose one's～well 选择好时机;

(5)力(能)率(tendency to produce motion，esp about an axis)[C，通常 sing]：the～of a force力矩;the～of inertia 转动惯量;

at the moment此刻：be busy/reading at the～此刻正忙/在看书;She is not in at the～.她现在不在。

for the moment 目前，暂时：What can we do for the～?目前我们能做些什么呢?

have one's/its moments 也有短暂的好时候：The play had its～s but was generally pretty dull.这剧也还有意思，但总体上很枯燥。

not for a moment (or minute/second)根本不，决非：I'm not for a～saying that the management is perfect.我根本就不是说资方无可挑剔。

this moment　1)现在，即刻：Come here/Go to bed this～.立刻到这里来/去睡觉。2)刚才：I've only this～got your letter/come into the room.我只是刚收到你的来信/进到屋里来。

the moment(or minute)(that...)一……就：The～I saw him I knew that was no hope.一见到他，我就明白，没希望了。Phone me the～that you hear any news.一有消息，马上电话通知我。

→′momentary adj 顷刻的，瞬间的;′momentarily adv 片刻地，短暂地，即刻