I like to think of myself as a free spirit.

我喜欢把自己看成一个无拘无束的人。

She's always been a free spirit.

她总是那么无拘无束。

But I have always been a free spirit.

但我一直安于自由自在。

When not restrained with in it you are a free spirit.

当不再需要按捺的时候你就是一个自在的灵魂。

She was disciplined, but at the same time a free spirit.

她一方面恪守纪律，另一方面又追求精神自由。