Billing for goods and services that customers have purchased is part of any business.
Billing for goods and services that customers have purchased is part of any business.
顾客购买商品，享受相应的服务，并支付费用，是所有商业行为的一部分。
Billing for goods and services that customers have purchased is part of any business.
顾客购买商品，享受相应的服务，并支付费用，是所有商业行为的一部分。