31　after a moment，at the moment，for a moment和in a moment

① after a moment意为“过一会儿”，相当于after a while，与过去时连用。

I got to the station at nine. The train pulled in after a moment. 我九点钟到达车站，过了一会儿，火车就进站了。

The wounded came to after a moment. 伤员过了一会儿就醒来了。

② at the moment意为“此刻，当时，那时”，相当于at this moment，at that moment。

I have nothing to do at the moment. 我此刻无事可做。

I couldn't think of her name at the moment. 我当时想不起她的名字。

③ for a moment意为“一会儿，片刻，暂时”，有时可省略for。

Please wait here for a moment. 请在这儿稍等一会儿。(a minute，a while)

He paused for a moment. 他停了一会儿。

The food they sent will do for a moment. 他们送来的食物暂时够用的。(for the time being)

④ in a moment意为“立刻，不一会儿”，相当于in a minute，in a while，可同将来时或过去时连用。

I'll be back in a moment. 我一会儿就回来。

He repaired the bike in a moment. 他一会儿就把自行车修好了。

The hunter gathered some wood，and in a moment a hot fire was burning. 猎人捡了一些木柴，不一会儿一堆火就燃烧起来了。