up until

• adv. 直到； 到 ... 为止

up until的用法和样例：

例句

1. He didn't wake up until 11 o'clock in the morning.
   他上午十一点才醒。
2. He can keep up until ten o'clock tonight.
   今天晚上他能坚持到10点钟不睡。
3. I didn't wake up until I heard the alarm clock.
   直到听到闹钟的铃声我才醒来。