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We have been friends for nearly twenty years. Nothing can break off our _______.
1年前
1年前
Keeping better eating habits can help you reduce (减少) disease.
1年前
News Review Head-on Train Crash On May 18,two trains had a head-on crash (正面相撞) near New York City.
1年前
一堆煤有5吨,第一天烧了1/5吨,第二天烧了余下的1/5.第二天烧了多少吨?还剩下多少吨?
1年前