日立挖掘机官网报价:be rich( )to do sth

be rich( )to do sth be sure to do sth是什么意思? 用be to do sth造句 be good enough to do sth 解释 be about to do sth 是什么意思？ 用be eager to do sth.和be willing to do sth.造句 consider sb to be/to do sth 中文是什么? be happy/surprised to do sth后面这个to do sth充当着什么语? how to be rich 请用be supposed to do sth.翻译这句话