a.m.
abbr. 上午,午前(ante meridiem)
a.m. is used after a number to show that you are referring to a particular time between midnight and noon.
The program starts at 9 a.m.
节目上午9点开始。
1. before noon
Police said that the blast occurred at 9 a.m.
警方说这次爆炸发生在上午九点.
There will be no water tomorrow from 8 a.m. to 3 p.m.
明天上午8点至下午3点停水.
Every pupil is supposed to be in his classroom at 9 a.m.
上午9点时每个学生都应当在教室里.
He rose at 7 a.m., rehearsed all day and appeared in a play at night.
他七点钟起床, 排了一天戏,晚上演出.
The train will depart at 7:30 a.m.
早七点半发车.