a.m.
abbreviation /ˌeɪ ˈem/
/ˌeɪ ˈem/
(North American English also A.M.)
- between 12 o'clock at night and 12 o'clock in the day (from Latin ‘ante meridiem’)
午夜至正午,上午,午前(源自拉丁语 ante meridiem) - It starts at 10 a.m.
上午 10 点开始。
词源from Latin ante meridiem. - It starts at 10 a.m.