Studying the 3000 most frequently used words will familiarize you with 94.0% of vocabulary in oral speech.
学习3000个最常用的词汇，会使你熟知口语中94%的词汇。
And if your vocabulary is composed of all the most frequently used words plus those that are related to the subject of discussion, you have less difficulties in understanding.
如果你的词汇结构是由基本的常用词汇加上针对所听材料需要的词汇的话，理解就没有什么困难。
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