After getting through CET4, I breathed a sigh in relief.
考完四级考试，我终于安心地叹一口气了。
Over 2 years of working experience. English reading and writing required, with CET4 preferred;
2年及以上相关工作经历，且有一定英语读写能力，四级以上优先；
Adopting the method of corpus, this paper investigates lexical errors in 134 pieces of CET4 writing.
运用语料库的方法，调查了134篇大学英语四级写作语料中的词汇错误。
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