To start with, pirated products often cost much less than the original ones, so they enjoy unbeatable advantage in price in spite of their relatively poor quality.

首先，盗版产品比原版的成本要小很多，因此，尽管它的质量很差，但是却拥有极大的价格优势。

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They also tend to produce poor-quality coal which generates relatively high levels of pollution when burned.

他们也倾向于生产劣质煤，这些煤在燃烧时产生相对高的污染水平。

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However, the issues for financials ETFs and mutual funds go beyond the relatively poor quality of the stocks in the sector.

FORBES: Financial Sector Funds And ETFs Need Less Citi, More Discover

He described classical music aficionados - of which he is one - as "a fastidious lot" who had been slow to switch to digital because of the relatively poor quality of compressed files.

BBC: Passionato logo

The company said it had found relatively poor oil quality and a smaller reservoir size than expected at its Fulla prospect.

BBC: Oil company Faroe Petroleum abandons Shetland licence