复数：carpools 过去分词：carpooled 现在分词：carpooling
1.拼车
2.(公司)车队
1.a group of associated people sharing the use of their cars, each in turn driving the others
2.a group of cars owned by a company that can be used by people who work for the company
1.to drive or be driven regularly from one place to another as a small group, with each member sharing driving responsibilities
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