It's not sure that how long it will take the human beings to living in the bottom of the sea.
为什么用in 而不用at 因为,这里中文意思并不是说人类真正地住在海的最底层,而是在海洋中生活.
It's not sure that how long it will take the human beings to living in the bottom of the sea.
为什么用in 而不用at 因为,这里中文意思并不是说人类真正地住在海的最底层,而是在海洋中生活.