认识车和船的英文是 "to know cars and boats". 来源是这些词都是指在公路和水上运行的交通工具，并且在英语中都有专门的单词来表示它们。
例句：
"I know cars and boats because I grew up in a coastal town." (我知道车和船，因为我在沿海城镇长大。)
"My dad knows a lot about cars and boats because he used to work in a car dealership." (我爸爸对车和船很了解，因为他以前在汽车经销商工作。)
"I don't know much about cars and boats, but I'd pke to learn more." (我对车和船不太了解，但我想学习更多。)
总之，"to know cars and boats" 表示对这些交通工具有一定的了解，可以用来描述个人经验或兴趣。