1 to travel by boat, visiting a number of places, as a holiday 乘船游览；海上航游: to cruise around the Caribbean乘船周游加勒比海地区
2 to stay at the same speed in a car, plane, etc 乘汽车、飞机等以不变的速度行进: cruising at 80 kilometres an hour以时速80公里行进
cruise²
/kru:z ||; kruz/noun [C] a holiday in which you travel on a ship and visit a number of different places 乘船旅游（的假期）: They're planning to go on a cruise.他们打算乘船出游。