"Bright light too close to bedtime can make it hard to fall asleep," Arnedt says. That's because dimness signals the biological clock that it's time to wind down, while bright light says "daytime!"

“睡前光线过强也会影响睡眠，”阿内德特说，这是因为弱光会给我们的生物钟发出信号“该休息了”，而强光发出的信号则是“白天到了！”

youdao

We're all guilty of spending the occasional lazy Sunday in front of the TV but it could be the reason that you're finding it so hard to fall asleep at night.

我们都会因偶尔在电视前度过慵懒的周日而内疚，但这可能是你晚上难以入睡的症结。

youdao

We 're all guilty of spending the occasional lazy Sunday in front of the TV but it could be the reason that you're finding it so hard to fall asleep at night.

我们都会因偶尔在电视前度过慵懒的周日而内疚，但这可能是你晚上难以入睡的症结。

youdao

But the Navajo homeland is harsh country, where it's hard to find good-paying jobs and all too easy to fall sway to alcoholism and despair.

VOA: standard.2010.03.22

You had to work hard to fall out of that class.

BBC: Class calculator: A US view of the class system

When I swam ashore for a break after the first hour, the girls complimented me on my windsurfing form ("you looked like you were trying really hard not to fall off the side of a building") and introduced me to Aaron, the white-haired Sephardim who co-owned the windsurfing operation with his daughter.

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The Times quoted him at length and went on about how hard it is to fall in love with sport utility vehicles.

FORBES: Falling in love