make your room dark
把你的房间弄暗
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Make your room dark as possible.
尽量使你的房间黑一些。
youdao
Make your room dark, quiet, and cool.
保持房间黑暗，安静，凉爽。
So make your room dark and sleep early in the night allowing your body to produce melatonin.
所以晚上睡觉要保证房间黑暗并且早睡，这样能促进褪黑激素的产生。
First, the no-brainers, Sleep 101 if you will: exercise more, drink less alcohol and make your room as dark and as quiet as possible.
FORBES: Sleepless In The Big City: Why Leaders Are So Tired (and what can they do about it)
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