然而，人类克隆应该不是不可能的问题。

Still, human cloning should not be out of the question. In vitro.

youdao

如果未返回深层克隆，则运行时行为将不可确定。

If a deep clone is not returned, the run-time behavior is undefined.

youdao

如果未返回深层克隆，则运行时行为将不可确定。

If a deep clone is not returned, the run-time behavior is undefined.

youdao