English in a Minute:Buckle Down

发表时间:2018-02-20内容来源:VOA英语学习网

A "buckle" is a device that connects one thing to another. But the conversational phrasal verb "buckle down" means something different. Learn how to use this phrase in this week's EIM!

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来自:VOA英语网 文章地址: http://www.tingvoa.com/html/20180208/English-in-a-Minute-Buckle-Down.html