介紹 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。第2頁第3頁第4頁第5頁