I don't have much free time.

　　我沒(méi)有多少空閑時(shí)間。

　　You are free to come and go as you please.

　　你來(lái)去自由。

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

　　生活絕不會(huì)再那樣無(wú)拘無(wú)束了。

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

　　要確保機(jī)器周圍空氣暢通。

　　Do you have much free time?

　　你空閑時(shí)間多嗎？