Smoke-free 無煙的 Sir. This is a smoke-free restaurant. You can't smoke here. 先生。這是無煙餐館。您不能在這吸煙。 No smoking or vaping. 禁止吸煙或吸電子煙 vape v. 吸電子煙 e-cigarette 電子煙 alcohol-free 不含酒精的 A: I am sorry I can't drink alcohol. 不好意思我不能喝酒。 B: Don't worry. It's an alcohol-free drink. 別擔(dān)心。這個酒不含酒精。 duty-free 免稅的 We got a lot of duty-free stuff while we were waiting at the airport. 候機(jī)的時候我們買了很多免稅的東西。 sugar-free 不含糖的 Sugar-free gum does not have any sugar in it. So it doesn't cause tooth decay. 無糖口香糖不含糖。所以不會引起蛀牙。 interest-free 無息的 The card offers 59 days' interest-free credit. 該卡提供59天免息的額度。 stress-free 沒有壓力的 No working environment is entirely stress-free. 沒有哪個工作環(huán)境是完全不存在壓力的。