中文：

放量是指某个交易品种或者股票在交易过程中，其成交量突然大幅增加，远超过其之前的平均水平。这通常意味着市场情绪的转变，可能由观望转向积极，或者由恐慌转向稳定。

在股票市场中，放量通常被视为一种积极的信号。如果一只股票放量上涨，那么这可能意味着主力资金开始介入，后市可能有机会继续上涨。同样地，如果一只股票放量下跌，那么这可能意味着主力资金正在出货，后市可能继续下跌。

然而，放量并不总是代表市场趋势的转变。有时，市场可能会出现假突破或者假动作，即短暂的放量上涨或者下跌之后，市场可能会重新回到原来的趋势。因此，投资者在面对放量时，需要结合市场环境、技术分析等多种因素进行综合判断。

英文：

Volume surge refers to a sudden and significant increase in trading volume of a certain trading品种 or stock during the trading process, far exceeding its previous average level. This usually means a shift in market sentiment, perhaps from观望to positivity, or from panic to stability.

In the stock market, volume surge is usually seen as a positive signal. If a stock experiences a volume surge and a rise in price, it may mean that the main funds have started to intervene and there may be opportunities for continued growth in the future. Similarly, if a stock experiences a volume surge and a fall in price, it may mean that the main funds are selling off and there may be continued downward pressure in the future.

However, a volume surge does not always represent a shift in market trends. Sometimes, the market may experience a false breakout or fake move, where a brief surge in volume and price is followed by a return to the original trend. Therefore, investors need to combine market environment, technical analysis, and other factors to make a comprehensive judgment when facing a volume surge.