More than one in five American residents now speak a language other than English at home, according to new research based on 2016 US Census¹ Bureau data.

根据基于美国人口普查局2016年的数据的最新研究显示，如今超过1/5的美国居民在家使用英语以外的语言。

The research, conducted by the Center for Immigration Studies, shows that a record 65.5 million US residents five years of age and older don't speak English at home.

由移民研究中心负责进行的这项研究显示，在家不说英语的5岁及以上的美国居民达到创纪录的6550万人。

Among them, 26.1 million (39.8%) told the US Census Bureau that they speak English less than very well. This figure is based entirely² on the subjective³ opinion of the respondents.

其中，2610万人（39.8%）对美国人口普查局称自己英语讲得并不是很好。这一数字完全基于受访者的主观看法。

On an objective test of English literacy, prior⁴ CIS research showed that even among immigrants who have lived in the country for more than 15 years, 43 percent score at the "below basic" level, which is sometimes equated⁵ to functional⁶ illiteracy⁷.

在一项有关英语读写能力的客观测试中，移民研究中心之前的研究显示，即使是在这个国家居住超过15年的移民，43%的人的得分“低于基本水平”，这有时等同于功能文盲。

Many Americans who speak a foreign language at home are not immigrants. The data show that overall, 44% (29 million) of those who speak a language other than English at home are US-born.

许多在家使用外语的美国人并不是移民。数据显示，总的来说，44%（2900万）的在家说外语的人是在美国出生的。

Of languages with more than 400,000 speakers, the largest percentage increases since 2010 were among speakers of Arabic (up 42%), Hindi (up 33%), Urdu (up 22%) and Chinese (up 20%).

在使用人口超过40万的语言中，2010年以来使用人数增幅最大的是阿拉伯语，增幅为42%，其次是印地语（33%）、乌尔都语（22%）和汉语（20%）。