Black and white belong to achromatic series in color. Black and white collocation literally refers to the collocation of two colors, like Damamachi. Black and white collocation can sometimes be understood as good and bad collocation, and sometimes it can also be understood as black and white double evil. Ha ha. Improved (1). Correct mistakes or mistakes and return to beauty. Wang Lie: "It's shameful to steal and be afraid of being heard by me. Shame and evil can improve. " (2) change the original situation and make it better. The second chapter of Ba Jin's death: "Even she, with her pure and great love, can't improve his fate." Over and over again ... well ... it's just black with white ... some words have different meanings in different contexts ... I don't know what you're trying to express here. Continuous improvement is also called Deming cycle or PDSA cycle. The study of PDCA cycle, also known as Deming cycle, originated in the 1920s. The famous German statistician Walter A. shewhart, the father of statistical quality control, introduced the concept of "plan-implement-check" at that time. The term "improved housing" is undoubtedly aimed at expanding the preferential treatment previously given to small-sized houses with a size of less than 90 square meters, so the area can be used as a definition standard, and it is estimated to be about 65,438+000 square meters; Some people think that the per capita housing area or housing unit price will be the standard. However, no matter how it is defined, the "90 policy" and "second suite standard" that have always been considered unshakable in the past ... invincible black and white Chanel famously said: "White will never die, and black is indispensable." Especially on the men's show, black, white and gray have almost become eternal, and this season is no exception. Black seems to be one of the important topics for designers to challenge themselves in recent seasons. In order to refresh the mind, black is no longer happy. This season, it suddenly appeared in Versace and Prada. It is a nursery rhyme of a game, which is used to choose one or several people in a group. Just like when I was a child, the rubber band jumps were grouped, one group stretched the rubber band and the other group jumped. The general saying is that "the palm and the back of the hand are black and white." The version of Shanghai dialect is "ping-pong-pong" or "black and white cross belt welfare" ~ ~ and "Dian, Dian, Dian sesame oil, ... your Chinese needs to be improved. Improvement (1) [Perfect]: Make the original situation better. Since the founding of People's Republic of China (PRC), people's living conditions have been greatly improved. Explain that you still have some places that are not good enough and need to do better. If someone comments on you like this, it means that you have not satisfied this person in some ways, that is to say, what you have done still makes him (her) dissatisfied.