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http://ling-lingchinese.com/2018/08/30/%e8%bf%99%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f%e9%82%a3%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f/
Videos for L2D1: 这 this / 那 that/ 有have