I remember I learned something before, for example, white line is a white lie; green hand is the meaning of rookie rookie

1. red (red) whether in English-speaking countries or in China , red is often associated with celebrations or festive days. Therefore, red letter day refers to "anniversary" or "happy day" because these days are often printed in red font in calendars. Red often refers to "liability" or "loss" because when net income is negative on the books and on the income statement, people use a red pen to register it. So there are terms such as red figure (deficit), red ink (deficit), in the red (loss), red-ink entry (deficit entry), red balance (deficit balance), etc. In addition, there are other representations such as red cent (one penny), red gold (pure gold), red tip on stock market (referring to the latest information on the stock market).

2.Black (black) in English is often associated with "bad", "bad", and "evil". For example, black money refers to illegal sources and no direction. The government's tax return money, black market (black market transaction or black market) means secretly conducting transactions in goods or foreign exchange that are prohibited by the government, or it refers to illegal speculation in the market, from which terms such as black market price (black market financing) are derived. In addition, black in English can also represent profit. Like red, it is the color of ink in accounting. For example, black figure and in the black all mean "profit", "making money", "surplus", etc. Another example is that black figure nation refers to a country with a balance of payments surplus, and interest in the black means "interest receivable".

3.Blue (blue) usually expresses unhappy and melancholy emotions in English, such as in a blue mood (depressed mood). It is also often used to express high social status, power, or aristocratic origin or royal family. For example, He is a real blue blood. (He is a real aristocrat.) Blue-eyed boys refer to "employees who are favored and given special care by the management authorities." In economic vocabulary, blue means many different meanings, such as blue book (blue book), blue-sky market (open-air market), blue-collar workers (workers engaged in manual labor), blue chip (popular securities), blue button refers to the right A broker who enters stock trading, blue return refers to the "blue income tax return", which is exclusively for honest taxpayers, blue-chip rate refers to the UK's preferential credit interest rate, and blue laws refer to the prohibition of doing business on Sundays. The American law of business transactions, blue-sky law (blue law) refers to the stock issuance control laws enacted by various states in the United States to manage stocks. Blue sky bargaining (bargaining) refers to the proposal in negotiations or other transactions that is simply unrealistic or unreasonable. demands, making it impossible to reach an agreement.

4.green (green) green in English is often used to mean "fresh" or "jealousy", such as green-eyed "jealousy", "jealousy", green also means inexperience and lack of training, such as You are expecting too much of him. He is still green, you know. (You are expecting too much of him, he has no experience yet.) green buck often refers to "US dollar bill" because the back of the US dollar is green. Green power refers to "the power of money" or "consortium", green meat refers to "fresh meat", green stamp refers to the American relief subsidy ticket, so named because it is printed in green, green sheet refers to the government budget detailed comparison table, green pound (green pound) ), refers to the high exchange rate of pounds sterling set by the EU for internal calculation of agricultural product prices.

5.white (white) In English, white often reminds people of innocence. For example, white war refers to a war without gunpowder and often refers to "economic competition." Some things are derived from their color being white