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大小写变形:QSR
That's about 10 seconds more than the industry average — and a lot slower than a decade ago, according to the study, which was commissioned by QSR, an industry trade publication.
2018年6月四级真题（第一套）听力 Section A
英汉双解词典包含4367426条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。