Over the past few decades, rental affordability has become a widespread problem in the U.S. as rent levels grew faster than renter income.

过去的数十年间，在美国租金涨幅远比租赁者的收入涨幅快得多，租赁者的支付能力已经变成是一个普遍的问题。

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The affordability of flats in the private sector is the key factor in considering rent levels of public rental flats.

市民对私人楼宇的负担能力是厘定公屋租金的主要考虑因素。

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