the tree i planted last year grows fast ,it is now the one next to it
问题描述：
the tree i planted last year grows fast ,it is now the one next to it
如题,我想知道 twice the height 还有他的表达形势,如果有专业点的解释就更好了!
答
twice the height of意思是高度的两倍如果是三倍呢？什么个表达形式？third the height of 序数词+the height of