feel free

基本解释

Feel free to dance in the streets.
您可以自由地在街上跳舞了！
I feel free.
我觉得自由。
blog.sina.com.cn
Feel free to use some of your existing test cases when you test your integration.
在您测试您的集成时，您可以自由的使用您已有的测试用例。
dict.cn

You feel mighty free and easy and comfortable on a raft...
The other quick thing I want to say is that I do have office hours today from 3 to 5, so feel free to stop by if you have questions about problem-set 3 that you're finishing up.
我还想说一件小事,我今天的答疑时间是三点到五点，如果你对于第三次作业还有任何疑问,请在这个时间段来找我，不必客气。
麻省理工公开课 - 化学原理课程节选
People should feel free to correct my arithmetic because it's often wrong; 90 right? Two-thirds of 90, whoops, what do I need, start again.
我要是算错了要提醒我,我总算错,90对吧,90的2/3,我说错了
耶鲁公开课 - 博弈论课程节选

Unidentified Woman: If there's anything here you want, feel free to take whatever you need there.
NPR: At Iowa Meatpacking Plant, New Workers Complain

If someone tells you to feel free to do something, they mean that you can do it if you want to.