来自欧长清的问题
Yetthereisonebasicdifficultytolivinginwater为什么是livingYetthereisonebasicdifficultytolivinginwater-thefactthatit'sincompressible.不是bedifficulttodosth或者havedifficultydoingsth?这里的living是名词?
Yetthereisonebasicdifficultytolivinginwater为什么是living
Yetthereisonebasicdifficultytolivinginwater-thefactthatit'sincompressible.
不是bedifficulttodosth或者havedifficultydoingsth?这里的living是名词?
