翻译这句话

Question

there are two main changes comparing with the past .First there are new definitions of what man can achieve

Answer 1

there are two main changes comparing with the past .First there are new definitions of what man can achieve
与过去相比，有两个主要的变化。首先，人们对人类能达到的目标有了新的定义追问

what指的是什么意思，what man can achieve是 new definitions的定语吗

Answer 2

与过去相比有两个主要的变化。首先，对人类所能达到的目标有了新的定义追问

what指的是什么意思what man can achieve是 new definitions的定语吗