那些产品可能是从一个完全不考虑安全性和实用性的厂家生产出的，那些牙刷的材质很可能是次品甚至会有害。
The product could be from a manufacturer who doesn't care about safety or efficacy. The toothbrushes could be made of inferior or even unsafe materials.
Kendall先生和他在俄罗斯的打赌是幸运的，但是他是一个孤独的先行者，在这个国家甚至连次品都短缺，更不用说好的东西了。
Mr Kendall was lucky with his bet on Russia, but he was a lone pioneer in a country that was short even of shoddy goods, let alone nice ones.
由于涂装要求的不同，压缩空气中的固体污染物甚至造成大量的次品和返工。
Due to the different requirements of coating, compressed air of solid matter even create a huge defective goods and rework.
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