look a gift horse in the mouth

[usually with negative] find fault with something that has been received as a gift or favor: They did not look the gift horse in the mouth when the opportunity for victory presented itself. [earlier as "look a given horse in the mouth" –– prospective purchasers would often inspect the condition of a horse's teeth.]

Standard of Living / 生活水平 vs. Quality of Life / 生活質量

Standard of Living vs. Quality of Life: What's the Difference? Amy Fontinelle Source: https://www.investopedia.com/articles/financial-theory/08/standard-of-living-quality-of-life.asp Standard of living refers to the level of wealth, comfort, material goods and necessities available to a certain socioeconomic class or geographic area. Quality of life, on the other hand, is a subjective term that can measure happiness. The two terms … Continue reading Standard of Living / 生活水平 vs. Quality of Life / 生活質量