人在驴途
passportn.护照手段；保障Quite a number of young people maintain that money is a passport to happiness. (喻)相当一部分年轻人坚持认为金钱是获得幸福的保证。
小龇everything
护照
双语例句：
You should take your passport with you when changing money.
兑换货币时应该带着护照。
双语例句：
He was sent back to his country because he had no pass.
他因为没护照，被遣送回国。
夏哲藤1
护照 Your passport is an official document containing your name, photograph, and personal details, which you need to show when you enter or leave a country.进身之阶；（获取成功或幸福的）途径，手段 If you say that a thing is a passport to success or happiness, you mean that this thing makes success or happiness possible.
角落里的镜子
passport n.[C] 1. 护照;通行证;执照 A person who travels abroad must carry a passport. 出国旅行要携带护照。 2. (达到目的的)手段[S1][(+to)] What is the passport to happiness? 得到幸福的手段是什么?
