Cloning has always been with us and is here to stay.

Cloning has always been with us and is here to stay.

题目
Cloning has always been with us and is here to stay.
分析一下这句子
答案
主语:Cloning
谓语部分:has always been with us
is here to stay.
并列句,平行结构.
has been 现在完成时,过去到现在一直是
克隆技术一直相伴我们左右,无论过去还是未来.
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