中文段落：

股票市场中经常听到“利多”和“利空”的说法，这两个词是投资者用来描述某种消息或事件对股票价格是正面还是负面影响的术语。利多，即有利于股票价格上涨的消息或事件，比如公司盈利超出预期、国家政策扶持相关行业等，这些消息会吸引投资者买入股票，从而推动股价上涨。而利空，即不利于股票价格上涨的消息或事件，如公司业绩下滑、行业监管加强等，这些消息可能导致投资者卖出股票，对股价形成下行压力。

理解利多和利空的概念对于投资者来说非常重要。因为股票市场是高度信息驱动的，任何可能影响公司未来业绩或行业前景的消息都可能引发股价的波动。投资者需要根据自己的风险承受能力和投资目标，理性分析利多和利空消息，做出合适的投资决策。同时，也要注意，股票市场的走势往往受到多种因素的影响，单一的利多或利空消息可能不足以改变股价的长期趋势。

英文段落：

In the stock market, the terms "bullish" and "bearish" are often heard, referring to whether a particular news or event has a positive or negative impact on stock prices. Bullish news or events, which favor the rise of stock prices, include better-than-expected earnings, national policy support for specific industries, and so on. These pieces of news attract investors to buy stocks, pushing prices up. Conversely, bearish news or events, such as a decline in corporate performance or tightened industry regulation, can prompt investors to sell stocks, exerting downward pressure on prices.

It is crucial for investors to understand the concepts of bullish and bearish. As the stock market is highly driven by information, any news that may affect a company's future earnings or the industry's prospects can trigger fluctuations in stock prices. Investors should analyze bullish and bearish news rationally based on their risk tolerance and investment goals, making informed investment decisions. It's also important to note that the stock market's trend is often influenced by various factors, and a single bullish or bearish news may not be sufficient to alter the long-term trend of stock prices.