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。

youdao

Teachers who ignore kids, criticize or scold them often or create a negative, stressful atmosphere would be regarded as providing poor-quality care.

教师如果对待孩子态度冷漠、经常批评或者训斥孩子、营造出消极紧张氛围，其教学质量就被归入差等行列。

youdao

It is more than clear on this occasion that the cartoonist wishes to draw more attention to the problem of poor-quality products prevailing in our society.

很清楚，作图者希望更多的人关注社会上泛滥的低质量产品的问题。

youdao

Investigators blamed the destruction on the poor quality of many buildings and a lack of earthquake-resistant structures.

VOA: special.2011.01.04

Corn harvests remain small. The researchers say farming methods in Sub-Saharan Africa need to improve or else poor quality soil will increase rural poverty.

VOA: special.2009.07.28

This is the story of how one man combined LEDs with solar energy technology to bring high-quality, low-cost electric light to poor people around the world.

VOA: standard.2009.12.13

Safe from poor-quality credit, Visa is nevertheless highly dependent on the quantity of spending.

FORBES: Hard Charger

Gone are the days of repeating yourself over and over and listening to poor-quality tiny speakers.

ENGADGET: Ion unveils cellphone accessories for home phone replacement, speakerphones

But a few short years later Atari's machine, the 2600, was history, buried under a rash of poor-quality games.

FORBES: Pixelated dreams