Today's Sentence
Video not in English?Studies have suggested that when people are exposed to blue light before they go to sleep, they get less total sleep and wake up more frequently over the course of the night.
研究顯示,當人們在睡前暴露於藍光下,他們的總睡眠時間會減少並在夜間更頻繁地醒來。
Original Video:Does Using Your Phone Really Hurt Your Sleep?
Key Vocabulary
3. over/in the course of
over/in the course of
(phr.)

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