次品

例句：

1. 1. The company's product is known for its high quality, not its substandard ones.
   这家公司的产品以高品质著称，而不是其次品。
2. 2. He found the watch to be a poor second to the original model, which was a substandard copy.
   他发现这款手表远不如原版，原版是次品的复制品。
3. 3. The customer service representative assured me that all products were of substandardquality and would be replaced.
   客户服务代表向我保证，所有产品都是次品，将会被替换。