为什么会停牌？这个问题涉及到证券市场的规则和监管政策，以下是对这个问题的解析以及英文翻译对照：

首先，停牌是为了维护证券市场的公平和透明。当股票价格出现异常波动、存在严重的信息不对称或者可能影响市场公平性的其他因素时，交易所会采取停牌的措施，暂停交易以保护市场参与者的利益。英文翻译为：Firstly, suspensions are necessary to maintain fairness and transparency in the securities market. When there are abnormal fluctuations in stock prices, serious information asymmetries, or other factors that may affect market fairness, exchanges will take measures to suspend trading in order to protect the interests of market participants.

其次，停牌可能是为了应对重大事件和风险。当公司出现重大资产重组、债务危机、高管变动等重要事件时，为了保护投资者的利益和市场稳定，交易所会暂停交易以便投资者有足够的时间评估风险和做出决策。此外，当市场出现系统性风险或者技术故障时，交易所也可能采取停牌的措施来维护市场的稳定。英文翻译为：Secondly, suspensions may be implemented to respond to significant events and risks. When companies encounter significant events such as asset restructuring, debt crises, senior management changes, etc., exchanges will suspend trading in order to provide investors with sufficient time to assess risks and make decisions in order to protect their interests and maintain market stability. In addition, exchanges may also take suspension measures when market-wide risks or technical issues arise to maintain market stability.