词汇是语言构成的三大要素之一，是语言的建筑材料，是语音和语法的承载体。
Vocabulary is one of the three essential elements of language-pronunciation, vocabulary and grammar.
词汇是语言的基本材料。
然而词汇是语言的建筑材料，没有一定的词汇量外语就无法过关。
However the housing materials that the vocabulary is a language, without certain vocabulary foreign language cannot pass a barrier.
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