十块钱一次，不过你是免费的。

It costs ten bucks. But you get it free.

youdao

你是免费前往或逗留。

You are free to go or stay.

youdao

你是问，这所大学是如何邀请当地居民免费参加某些讲座和课程的吗？

You mean how the university invites local residents to attend certain lectures and classes for free?

youdao

We remember the fish that we used to eat free in Egypt Okay, we were slaves, but the food was free, you know?

我记得以前在埃及的时候不花钱就可以吃鱼,虽然我们是奴隶，但是食物是免费的，你知道吗？

耶鲁公开课 - 旧约导论课程节选

they even have days that you can get in for free for family revisiting and you can go in.

如果你是举家再访，有时候你甚至能免费进去。

蒂姆伯顿最棒 - SpeakingMax英语口语达人

It's a little more involved on a PC but it's all free, the software you can download, and Linux in similar operating systems generally come with a compiler or you run a simple command to get it.

在PC机上有点复杂，但是它是免费的，你一般下载的软件，类似Linux的操作系统等等通常都需要,一个编译器，或者你可以运行一些简单的指令来获取。

哈佛公开课 - 计算机科学课程节选