预约成功
on on a certain day
on a sudden(突然)
on a winter morning
on Christmas Day
on night shift
on one's birthday
on schedule(按时)
on Sunday, on that date转自环 球 网 校edu24ol.com
on the eve of
on the following day
on the instant(马上),
on the moment(立刻)
on the Monday morning
on the New Year's Eve
on the next morning
on the point of(正在…时候)
on the spur of the moment(立刻) on this day
on this occasion
on time
at at a time(在某时),
at a wedding(婚礼)
at all times(一直)
at any moment, at any time
at Christmas
at dark (天黑时)
at dawn(在黎明)
at daybreak
at dinner-time
at dusk(在黄昏)
at Easter
at first sight(一见到)
at first, at last
at midnight, at night
at nightfall, at noon
at present
at six clock
at sunrise
at sunset
at that moment
at that time
at the age of
at the beginning of
at the correct time转自环 球 网 校edu24ol.com
at the end of
at the last minute
at the moment
at the present stage at the same time
at the stage(眼下)
at the start
at the time being
at the time of
at the very start
at this point(此时)
at this season
at this time of day
at times(有时)
