that is的用法

题目

that is的用法
However,the development also brings an obvious defect that is cross-platform code transplantation can never be achieve in this surrounding.
that is 后面可以接句子么？
是不是用 that is because 就可以了 前面要用逗号隔开么？
However,the development also brings an obvious defect that is because cross-platform code transplantation can never be achieve in this surrounding.
是这样么？

答案

我觉得就用一个"that"才是对的.
即：However,the development also brings an obvious defect that cross-platform code transplantation can never be achieved in this surrounding.
这句话中,that引导一个同位语从句"cross-platform code...in this surrounding",that后面的这一个完整的句子指代前面的defect；
整句话的意思大概是：然而,新的研究成果也会带来一个明显的缺陷,那就是在这样的环境下,交叉平台密码移植永远都不可能实现.
that引导同位语从句的时候,别的介词都不需要,
再如：a growing recognition that older people have potential too
直译的意思是：一个逐渐形成的认识,那就是老年人也是有潜力的.
（希望对你有所帮助）