中文：

共同控股股东是指通过协议或股份的安排，与其他股东共同拥有公司股份，并对公司经营决策产生重大影响的大股东。这些股东通常在公司的股权结构中占据主导地位，能够影响公司的重大决策和经营方向。

共同控股股东可以是个人、公司或其他实体。他们通过持有多个公司的股份或与其他股东达成协议，实现对公司的共同控制。这些股东通常具有较高的资本实力、资源整合能力和行业经验，能够为公司带来更多的发展机会和资源支持。

共同控股股东在公司的治理结构中扮演着重要的角色。他们可以与其他股东分享公司的经营成果，参与公司的重大决策，并在公司董事会中发挥积极作用。同时，共同控股股东还可以通过协调与其他股东的关系，维护公司的稳定性和经营的连续性。

然而，共同控股股东也可能存在一些问题。例如，他们可能会利用自己的控制地位进行利益输送、关联交易等行为，损害其他股东的利益。因此，在公司的治理结构中，需要建立有效的监督机制和信息披露制度，保障所有股东的权益。

总的来说，共同控股股东是公司治理结构中的重要力量，能够为公司带来更多的资源和机会。然而，为了维护公司的稳定性和经营的连续性，需要建立有效的监督机制和信息披露制度，防止共同控股股东滥用其控制地位。

英文：

Joint controlling shareholders refer to major shareholders who, through agreements or share arrangements, jointly own shares of a company with other shareholders and have a significant impact on the company's operational decisions. These shareholders typically hold a dominant position in the company's equity structure and can influence the company's major decisions and operational direction.

Joint controlling shareholders can be individuals, companies, or other entities. They achieve joint control of a company by holding shares in multiple companies or entering into agreements with other shareholders. These shareholders typically possess strong capital strength, resource integration capabilities, and industry experience, and can bring more development opportunities and resource support to the company.

Joint controlling shareholders play an important role in the company's governance structure. They can share the company's operating results with other shareholders, participate in the company's major decisions, and play an active role on the company's board of directors. Additionally, joint controlling shareholders can also coordinate relationships with other shareholders to maintain the company's stability and operational continuity.

However, there may also be some issues with joint controlling shareholders. For example, they may use their control position to engage in behavior such as interest diversions and related party transactions that harm the interests of other shareholders. Therefore, in the company's governance structure, effective supervision mechanisms and information disclosure systems need to be established to safeguard the rights of all shareholders.

Overall, joint controlling shareholders are an important force in the company's governance structure that can bring more resources and opportunities to the company. However, to maintain the company's stability and operational continuity, effective supervision mechanisms and information disclosure systems need to be established to prevent joint controlling shareholders from abusing their control position.