Recent studies show that markedness is an essential factor determining the order of second language acquisition, and that learners tend to acquire unmarked language items before marked ones.

语言类型的标记关系是影响第二语言习得顺序的一个重要因素，学习者往往首先习得无标记的语言项目，然后才习得有标记的项目。

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Word order is one of the most important grammatical devices in modern Chinese, and it is, at the same time, one of the toughest points in the teaching of Chinese as second language.

语序是现代汉语重要的语法手段之一，也是第二语言（汉语）教学的难点之一。

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In order to find a better job, he decided to study a second foreign language.

为了找到一个更好的工作，他决定再学习另外一门外语。

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