They could miss out on the chance to try again and realize that what once seemed impossible is now within reach.
that是代词吗?是is now within reach的主语吗?
还有what引导的这一队,它们的作用是说明that的内容吗?
麻烦老师了,谢谢
that是引导宾语从句的连词,可以省略。what从句是宾语从句中的主语。以前似乎不可能的东西现在唾手可及。
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