A fun way to remember a.m. and p.m. is to listen to the song AM to PM by singer Christina Milian.
记住a.m。和p.m。的一个有趣方式就是听一听歌手克里斯蒂娜·米利安的歌曲《从上午到下午》。
英语百科
Milian
Milian is a Spanish (Milián) and Polish surname: from a reduced form of the Latin personal name Aemilianus (a derivative of Aemilius, a Roman family name probably derived from aemulus ‘rival’). This was borne by various early saints and hence was widely used throughout Europe as a personal name in the Middle Ages.