1.整点表示法：It's...o'clock.It's 9 o'clock AM.早上9点.It's 4 o'clock PM.下午4点.2.前半小时：It's 10 past 5.5点10分.It's a quarter past 9.9点15分.一刻钟 a quarterIt's half past 7.7点半.半小时 half pas...