I don't have much free time.

　　我沒有多少空閑時間。

　　You are free to come and go as you please.

　　你來去自由。

　　Life was never going to be so free and easy again.

　　生活絕不會再那樣無拘無束了。

　　Ensure there is a free flow of air around the machine.

　　要確保機器周圍空氣暢通。

　　Do you have much free time?

　　你空閑時間多嗎？