"Period" is a Chinese character that refers to a period of time. It can refer to a specific time period or a period of time, such as the listing period of a product or the profit period of a company. In addition, "period" also includes other meaning, such as expectation, expected value and number of periods.

The word "period" has different meanings in different scenes. For example, in the stock market, futures refers to the trading time of stocks in a certain period of time. In the insurance industry, this term refers to the insurance period specified in the insurance clause. In commodity trading, "term" usually refers to a futures contract, that is, a standardized contract with a certain point in the future as the delivery date, and the price is also determined when the contract is signed.

People need "period" because it can help us divide time into limited paragraphs, so as to better manage and use time. Whether in life or in economic activities, the concept of "cycle" is very important. For example, at work, in order to complete tasks in time, we have to abide by various working deadlines. In investment, we should choose the right period and products according to the market trend in order to get the maximum benefit. In short, it is very important to master the concept of "period" in any field.