他们从二手车赚钱，并试图通过零部件和服务提升生意。
They are making money on used cars and trying to ramp up business on parts and service.
他们花在网络上的时间主要用来搜索供应商，产品，零部件和服务等信息。
They are spending their time online looking for information about suppliers, products, components, and services.
修配用零部件市场：对商品和服务的需求，如零部件及维修工作，通常与对前次购买商品的维修有关。
The demand for goods and services, such as parts and repairs, associated with the upkeep of a previous purchase.
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