Only 15 percent of elementary schools and 58 percent of middle schools offer any foreign languages, according to the Center for Applied Linguistics.

据应用语言学中心的统计数据表明，只有15%的小学和58%中学提供外语教学课程。

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According to the Center for Applied Linguistics, in 2008 only 4 percent of middle and high schools that offer foreign-language instruction included Mandarin.

根据应用语言学中心的统计，2008年，美国为学生提供外语教学(包括普通话)的中学只占4%。

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According to the Center for Applied Linguistics, in 2008 only 4 percent of middle and high schools that offer foreign-language instruction included Mandarin.

根据应用语言学中心的统计，2008年，美国为学生提供外语教学(包括普通话)的中学只占4%。

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