【中文版】

大股东代理是指公司中拥有较大股份的股东，通过选举或协议等方式，授权另一位股东或其他人代表自己在股东大会上行使自己的投票权和表决权等权利。这种代理关系通常是在股东人数众多、股权分散的情况下，为了提高公司的治理效率和保护中小股东的权益而采取的一种措施。

大股东代理可以是临时的，也可以是长期的。临时的大股东代理通常是在公司召开股东大会前，由大股东临时委托他人代为行使自己的投票权和表决权等权利。而长期的大股东代理则是大股东通过协议等方式授权其他股东或其他人代表自己在股东大会上行使自己的投票权和表决权等权利，并签订相应的委托代理合同。

大股东代理的存在，可以解决一些中小股东在参与公司治理中存在的信息不对称、专业知识不足等问题，提高公司的治理效率和保护中小股东的权益。同时，大股东代理也需要注意防止出现权力滥用等问题，确保代理人的行为符合委托人的利益和公司的整体利益。

【英文版】

The proxy of a major shareholder refers to the situation where a shareholder with a large stake in the company authorizes another shareholder or other person to represent them in exercising their voting rights and rights of proxy in the general meeting of shareholders through election or agreement. This proxy relationship is usually adopted in situations where there are a large number of shareholders with scattered equity, in order to improve the efficiency of corporate governance and protect the interests of minority shareholders.

Proxy of a major shareholder can be temporary or long-term. Temporary proxy of a major shareholder usually refers to the situation where a major shareholder entrusts another person to exercise their voting rights and rights of proxy in the general meeting of shareholders before the meeting is held. Long-term proxy of a major shareholder refers to a major shareholder authorizing another shareholder or other person to represent them in exercising their voting rights and rights of proxy in the general meeting of shareholders through agreement, and signing corresponding proxy contract.

The existence of proxy of a major shareholder can solve some problems in corporate governance, such as information asymmetry and insufficient professional knowledge among minority shareholders, improve the efficiency of corporate governance and protect the interests of minority shareholders. At the same time, proxy of a major shareholder also needs to pay attention to preventing the abuse of power and ensure that the agent's actions conform to the interests of the principal and the overall interests of the company.