| [/ˏeɪ ˈem; ˋe ˋɛm/] abbr 缩写 = 用法:
1 (radio 无) amplitude modulation 振幅调制; 调幅. Cf 参看 FM 2. 用法:
2 (US) Master of Arts 文学硕士. Cf 参看 MA.
am 1
=> be. am 2
(US AM) [/ˏeɪ ˈem; ˋe ˋɛm/] abbr 缩写 = before noon (Latin ante meridiem) 午前, 上午（源自拉丁文ante meridiem）:
at 10 am, ie in the morning 上午10时. Cf 参看 pm. |