carpool
noun [ C, + sing/pl verb ] uk/ˈkɑːˌpuːl/ us/ˈkɑːrˌpuːl/
(PEOPLE)
合伙用车的一群人，拼车族（尤指上下班或上学、放学一起走的一群人，通常每天用其中一人的车）
a group of people who travel together, especially to work or school, usually in a different member's car each day
(CARS)
（公司等的）公用车队
a group of cars, owned by a company or other organization, that can be used by any of its employees