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, 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, on board (在船上) on camera(出现在电视上), on campus, on deck(在甲板上), on earth, on high(在高处), on land, on the bank, on the beach, on the borders, on the ceiling, on the coast, on the committee, on the corner(在拐角处), on the east of(在…的东面) on the farm, on the first floor, on the football field, on the (play)ground, on the horizon, on the island, on the left/right,. on the market, on the page 12, on the railway line, on the river, on the road, on the roof, on the sea, on the shore, on the side of, on the team, on the track(在轨道上), on the water(在水面上), on top of, on(in) the wall,
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