before xx o'clock
另外上午8点可以讲8:00am,下午8点可以讲8:00pm,依次类推,这是老外的常用法
Before 8:00 AM(eight o'clock )在（早8点）之前。
before + 时间
a few minutes earlier than + 时间
before (2 oclock)
not late than (2 oclock)
by (2 oclock)
before + time + am./pm.
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024