虽然香港、悉尼和温哥华地处全球的不同角落，但是它们有着同一个特征。

　　They're the top three most unaffordable housing markets in the world, according to the 13th Annual Demographia International Housing Affordability Survey: 2017, published recently.

　　根据近日发布的《第13次国际年度住房负担能力调查：2017》显示，这三座城市高居世界最不可购性房屋市场的前三甲。

　　Hong Kong has topped the list for the past seven years -- since its first appearance in the survey.

　　自从该调查首次面世以来，香港已经连续第七年高居榜首了。

　　Subdivided flats smaller than 100 square feet (9 square meters) can rent for $385 in the Asian city.

　　在这座亚洲城市，低于100平方英尺（9平方米）的隔断公寓的租金达到了385美元。

　　2017国际房价负担能力调查报告发布 香港仍高居第一

　　"Hong Kong is a small island with 7 million people ... and you have 1.5 billion across the border (in mainland China) who would like to invest," Mark Elliott, associate director of International Residential Property Services at Jones Lang LaSalle, tells CNN. "The government is releasing more and more land, but it doesn't work."

　　仲量联行国际住宅物业服务公司副董事马克·艾略特在接受CNN采访时表示：“香港是一个有着700万人口的小岛。边界那边（中国大陆）有15亿人口想要在此投资。虽然政府正在腾出越来越多的土地，但是这并不管用。”

　　"Sydney's housing prices shot up because foreign investors are buying trophy assets, in places like Bondi," says Elliot.

　　艾略特说道：“悉尼房价疯涨是因为国外投资者们正在如邦迪海滩这些地方购买炫耀性资产。”

　　"It's not sustainable growth because they're not being rented out and they're pricing people in the local market out of buying."

　　“这不是可持续的增长，因为它们并未被租出去，当地市场的喊价者们并不会购买。”