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最佳答案：1.gain knowledge,enhance quality,and facilitate job-hunting.2.there're millions
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最佳答案：These trees must be planted in spring.These photos might be taken in 2001.These
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最佳答案：原文好像有点不太完整?In fact, my English is not that good, but other students around me ar
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最佳答案：1、六十亿八千万人口a population of 6billion and 80 million2、成百上千的顾客hundreds and thousands