中文：

股市28分化是指股票市场中存在着20%的股票上涨，而80%的股票出现下跌的情况。这种分化现象在股市中比较常见，也被称为“二八定律”。

具体来说，在股市中，总有一些股票会表现出色，成为市场的领头羊，而其他大部分股票则表现不佳，甚至出现下跌。这种分化现象的原因有很多，其中包括市场资金不足、投资者信心不足、宏观经济环境变化等等。

在28分化的情况下，投资者需要更加谨慎地选择股票，因为大部分股票的走势是不确定的。投资者可以通过对市场趋势的分析、对公司基本面的研究、对行业发展的判断等手段来寻找那些具有上涨潜力的股票。

总的来说，股市28分化是一种常见的市场现象，投资者需要认真分析市场情况，把握市场机会，同时也要注意风险控制，以获得更好的投资收益。

英文：

The "28分化" in the stock market refers to the situation where only 20% of stocks rise while 80% of stocks fall. This kind of divergence is a common phenomenon in the stock market, also known as the "20-80 rule".

Specifically, in the stock market, there are always some stocks that perform well and become the leaders of the market, while most other stocks perform poorly or even fall. There are many reasons for this kind of divergence, including insufficient market funds, lack of investor confidence, changes in the macroeconomic environment, etc.

In the case of 28 differentiation, investors need to choose stocks more carefully because the trend of most stocks is uncertain. Investors can find stocks with upward potential through analysis of market trends, research on company fundamentals, judgment of industry development, and other means.

Overall, the 28 differentiation in the stock market is a common market phenomenon. Investors need to carefully analyze the market situation, seize market opportunities, and also pay attention to risk control to obtain better investment returns.