介绍200字 2025-01-23下载文档一键复制全文 Dave：This is my mother 。Mom，this is LinHai。 LaiHai：Nice to meet you。 Mom： Nice to meet you， LaiHai！ Dave：And these are my grandparents。 grandparents：Hi，LaiHai！ LaiHai：Hello！ Dave：And this is my siter，Mary。and this is my brother，Jim。