质量低劣用英语怎么说

质量低劣用英语可以译为"low quality"或"inferior quality"。这个表达来源于英语中"quality"一词，意思是"性质、质地、品质"之类的含义。所以，当我们想要表达某件东西的质量低劣时，就可以使用这两个表达。
下面是一些英文例句，并提供中文翻译供参考：
The shirt I bought from that store was of low quality. It started to fall apart after just a few wears. (我从那家商店买的衬衫质量低劣。只穿了几次就开始掉线。)
I returned the toaster because it was of inferior quality. It didn't even toast my bread evenly. (我退了这个烤面包机，因为它的质量低劣。它甚至连面包都烤不均匀。)
The paper towel brand we usually buy has changed its production process and the quality has become low. (我们通常买的那个纸巾品牌改变了生产工艺，质量变差了。)