The swirl of construction dust and sound of jackhammers can be overwhelming during the day. Some say the city looks best at night.

白天城市到处都是建筑灰尘和工地上的声音。有人说，晚上这座城市最漂亮。

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Next day, I asked the principal, which bird's night ticking sound was so loud that can go through the window to wake up me in snoring sleep?

第二天，我询问校长，什么鸟儿夜啼之声如此响亮，叫声能穿过窗玻璃把鼾睡中的我叫醒？

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"That might not sound like a lot but it means that you're not quite as sleepy on Sunday night at the normal bedtime and you'll be much sleepier the next day," Prof Lack said.

“一个晚上的测试可能不说明问题，但是它意味着如果你不是按平时的就寝时间沉睡，你会在第二天非常困。”教授Lack说。

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