【中文版】

炒股是一种投资行为，它通过买卖股票赚取差价来获取收益。简单来说，炒股就是炒公司的未来价值，投资者通过预测公司未来的发展情况和盈利能力来决定买入或卖出股票。

炒股需要有一定的知识和技能，需要对市场和经济环境有一定的了解和判断。在炒股过程中，投资者需要关注公司的财务状况、行业地位和竞争对手等信息，同时也需要了解政策、市场情绪等因素对股票价格的影响。

炒股的风险较高，因为市场波动和公司业绩的不确定性都可能导致投资者亏损。但是，如果投资者具备足够的知识和技能，并且能够承受一定的风险，炒股也可以带来较高的收益。

总的来说，炒股是一种高风险、高收益的投资行为，需要投资者具备一定的知识和技能，并且要有冷静的心态和足够的耐心。

【英文版】

What is Stock Trading?

Stock trading is an investment behavior that earns profits by buying and selling stocks. In simple terms, stock trading is speculating on the future value of a company. Investors predict the company's future development and profitability to decide whether to buy or sell stocks.

Stock trading requires certain knowledge and skills, and a basic understanding of the market and economic environment. During the process, investors need to pay attention to the company's financial status, industry status, competitors, and other information, while also understanding the impact of policies, market sentiment and other factors on stock prices.

The risk of stock trading is high because market fluctuations and company performance uncertainty can cause investors to lose money. However, if investors have sufficient knowledge and skills, and can withstand certain risks, stock trading can also bring high returns.

Overall, stock trading is a high-risk, high-return investment behavior that requires investors to have a certain level of knowledge and skills, as well as a calm mindset and sufficient patience.