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Last year, the crime rate in chicago has sharply declined这里为什么不能填descended
网校学员ur4**在学习新概念英语2、3、4册连读【双11专享班】时提出了此问题，已有1人帮助了TA。
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清醒季smile
同学你好，该知识点来自沪江网校《新概念英语2、3、4册连读【双11专享班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。
同学你好~descend 指人或事物从高处向低处移动。
The old lady slowly descended the stairs.
这位老太太慢慢走下台阶。
Last year, the crime rate in chicago has sharply declined. 去年，芝加哥的犯罪率急剧下降。
这里decline表示“下降”
祝同学学习进步~
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新概念英语2、3、4册连读【双11专享班】
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