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

but with, you know, less cost, and probably even quality is not that high.

却只要更少的成本，虽然产品的质量可能不怎么高。

唐人街的美食 - SpeakingMax英语口语达人

"And so it's possible that the effects that we have reported may be a conservative estimate, and that the odds of survival associated with high-quality relationships may actually be larger."

VOA: standard.2010.07.29

She says the GI project will protect the environment in this region and make sure that Kampot pepper keeps its high quality and is not mixed with lesser quality peppers.

VOA: standard.2009.04.16