a kind of一种……
kinds of各种各样的……
kind of有点儿,有几分
a kind一种、一类
An apple is a kind of fruit.
苹果是一种水果.
She likes all kinds of sports.
她喜欢各种运动.
`Is she interested?' `Well,kind of.'
‘她感兴趣吗?’‘嗯,有点儿.’
I t isn't a kind of happiness?
这难道不是一种幸福吗?