填空题 Arbitrariness of language makes it potentially creative, and 1 of language makes learning a language laborious. For learners of a foreign language, it is this feature of language that is more worth noticing than its arbitrariness. (大连外国语学院2008研)
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【正确答案】 1、正确答案：Conventionality    
【答案解析】解析：语言学习过程中学习者必须识记一些固定搭配或约定俗成的习语谚语等，因此使得语言学习比较费力。