例句
My alarm rings at seven a.m. every weekday.
每个工作日，我的闹钟都在早上七点响。
Starting school before eight a.m. may reduce the amount of sleep that teenagers get on weekdays.
早上八点前上课可能会减少青少年在上学期间的睡眠时间。
常用搭配
- at six a.m.｜在早上六点
- from nine a.m.｜从上午九点起
- until eleven a.m.｜直到上午十一点
用法提示
放在钟点后；12 a.m.是午夜，12 p.m.是正午。