car·net /ˈkɑːneɪ $ ˈkɑːr-/ noun [countableC] 1. British EnglishBrE a small book of tickets that you can use on trains, buses etc 〔火车、公共汽车等上使用的〕车票簿
2. an official document that allows you to go somewhere, especially to drive across the border into another country for a limited period 〔尤指过境的〕证明，文件 → pass