中文：

权重股是指在股票市场中占有较大比例的股票，其价格波动对整个股票市场具有一定的引领作用。这些股票通常是大盘股或蓝筹股，具有较高的市值和流通性，因此对市场走势具有较大的影响力。

权重股的涨跌通常会带动整个市场的情绪和走势，因为它们的价格波动会影响投资者的信心和预期。如果权重股上涨，投资者会认为市场走势向好，进而增加对其他股票的购买意愿；而如果权重股下跌，投资者可能会对市场前景产生疑虑，进而减少投资或持币观望。

权重股的行业分布也具有一定的特点。例如，金融、地产、能源等传统行业中的大型企业通常具有较大的权重，而科技、医疗等新兴行业中的龙头企业也可能会成为权重股。

英文：

Weighted stock refers to the stocks that account for a large proportion in the stock market, and their price fluctuations have a leading effect on the entire stock market. These stocks are usually large-cap or blue chips with high market value and liquidity, so they have a greater influence on market trends.

The rise and fall of weighted stocks usually drive the market sentiment and trend, because their price fluctuations affect investors' confidence and expectations. If weighted stocks rise, investors may think the market trend is positive and increase their willingness to buy other stocks; if weighted stocks fall, investors may have doubts about the market prospects and reduce their investment or hold cash.

The industry distribution of weighted stocks also has certain characteristics. For example, large enterprises in traditional industries such as finance, real estate, and energy usually have a greater weight, while leading enterprises in emerging industries such as technology and healthcare may also become weighted stocks.