质量低劣

• inferior quality
• inferiority of quality
• bum

例句

1. 你们一定收到了质量低劣产品的到货抽样。
   No doubt you've received the outturn samples of the inferior quality goods.
2. 品质（质量）索赔是在货物质量低劣或是质量改变的条件下发生的。
   Claim on quality originates from inferior quality of goods or quality changes.
3. 杂质从其它东西中拣出的物品，尤指因为内在质量低劣而被抛弃的东西
   Something picked out from others, especially something rejected because of inferior quality.