1. 睡着一直什么也没听见, 也没被唤醒或惊醒：tractor scraper 拖拉机式铲运机 | sleep through 睡着一直什么也没听见, 也没被唤醒或惊醒 | univariable series 单变量级数

2. 睡过了：Would you get me through to Dr. Lemon please? 能帮我接通Lemon医生吗? | 4、睡过了. sleep through | How could you sleep through it? 你怎么能睡过头了呢?

3. 未被(吵闹声等)吵醒：609. sleep off 以睡眠消除(疲劳等) | sleep through 未被(吵闹声等)吵醒 | 610. let slide 放任自流,听其自然