- 牙垢
- tartar
- 牙垢
- dental calculus
- 丫头
- girl
- 丫头
- maid
- 丫头
- slave girl
- 篝
- cage
- 邮购
- buy [or purchase] by mail [or postal] order
- 邮购
- mail-order
- 采购
- purchase
- 采购
- buy
- 采购
- procure
- 采购
- source
- 全球采购
- global sourcing
- 采购员
- purchasing agent
- 采购中心
- sourcing center