Staying up late, an increasingly common phenomenon, can result in a series of health problems.

熬夜越发成为一种普遍的现象，但它会导致一系列健康问题。

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Migration from rural areas to urban cities has become a common phenomenon as the youth want to seek a more prosperous life.

从农村到城市的移居已经成为一种普遍的现象，因为年轻人想要追求更富裕的生活。

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Migration from rural areas to urban cities has become a common phenomenon as the youth want to seek a better and more prosperous life.

从农村到城市的移居已经成为一种普遍现象，因为年轻人想要追求更好、更繁荣的生活。

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Cyclones are a common phenomenon along the eastern coast of India at this time of year.

BBC: Southern India cyclone fizzles out

"This is a common phenomenon, and it's definitely a field for anticorruption work, " says Li Chengyan, director of Peking University's Research Center for Government Integrity.

WSJ: Chinese Officials Ousted Over Alleged Sexual Exploits

It needs to include smart, truly independent experts- and exclude people who have built their careers by touting shaken baby syndrome as a proven common phenomenon.

FORBES: The Dubious Science Of Shaken-Baby Syndrome