It is not until the tree is 20 to 25 years old that it becomes a r ______ adult.
问题描述：
It is not until the tree is 20 to 25 years old that it becomes a r ______ adult.
答
real 不用再考虑了
答
It is not until the tree is 20 to 25 years old that it becomes a __real____ adult.
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答
real