可数,不可数,都可能.
看例句：
I'm surprised by her bad behavior toward her friends. 这个泛指行为
Doctors are trying to educate people about behaviors that can put them at increased risk for skin cancer. 这个特指不同类型的行为.
behavior是不是可数名词
可数,不可数,都可能.
看例句：
I'm surprised by her bad behavior toward her friends. 这个泛指行为
Doctors are trying to educate people about behaviors that can put them at increased risk for skin cancer. 这个特指不同类型的行为.