Once we were asked to watch a video on how to operate the punches, all of us seemed to fall into sleep by the end of the video.
有一次我们被叫去看一个关于如何操作机床的视频，视频结束的时候我们所有人好像要睡着了。
It involves a mask that goes over your eyes that flashes lights or emits a sound when you fall into the REM stage of sleep.
这产品有个面具，可以在你即将进入深层梦境的时候在你的眼部发出闪光，或者弄出一些声音。
She will fall into a deep sleep that will last one hundred years," There was a great hubbub in the hall as everyone discussed the events.
大厅里每个人都在谈论这件事情，非常吵闹。
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