It's not free but very cheap.

它不是免费的，但是很便宜。

youdao

It's not free, you have to pay.

可不是免费的，你需要付费。

youdao

Penny: It's not free… I'm gonna pay him back.

不是免费的… 我会还给他的。

youdao

None. When you walk through that door it's an act of free will, and I will not have anything other than complete silence.

走过那道门,是你的自由，我不会做其他事,除非保持安静。

麻省理工公开课 - 固态化学导论课程节选

which is one of the few museums in D.C. that actually isn't free because it's not a national museum.

那是特区里少有的几个收费博物馆之一，因为它不是国家博物馆。

大都会艺术博物馆 - SpeakingMax英语口语达人

Now there's another kind of counterpoint called "Free counterpoint" where it's highly independent lines are sounding but they're not imitating one another.

现在又有了另外一种,对位法叫作,自由对位,乐曲里独立的声线同时进行,但是没有彼此模仿

耶鲁公开课 - 聆听音乐课程节选

But two things it's not: It's not always free (as in free beer), and it's not always easy.

FORBES: Magazine Article

But it's not capitalism, it's not free enterprise.

CENTERFORSECURITYPOLICY: Center For Security Policy

Well it's not free, that's for sure.

NPR: Excerpt: 'Nobody's Baby'