Class A Shares，A类股/A股，普通股，也就是上市公司发行的绝大多数股票。普通股是公司的所有权权益，并赋予购买者获得部分利润的权利。

Class A shares：common stocks, as are the vast majority of shares issued by a public company. Common shares are an ownership interest in a company and entitle purchasers to a portion of the profits earned.

Class B Shares，B类股/B股，当发行一种以上的股票时，公司通常会将其划分为A类和B类，其中A类股票比B类股票拥有更多的投票权。A类股票每持有一股可以提供10个投票权，而B类股票只能提供一个投票权。这取决于公司如何决定其股票结构。

Class B Shares：Class B shares are lower in payment priority than Class A shares. That means if a company were to go bankrupt and be forced into liquidation, Class A shareholders would be paid out first, then Class B.

区别：公司A类股和B类股的区别通常取决于分配给股东的投票权数量。A类股东通常拥有更大的影响力。尽管A类股东几乎总是拥有更多的投票权，但这实际上并不是法律要求。A类股票通常由公司的管理层持有，以保持足够的控制权。

参考双语例句：

he Agricultural Bank’s IPO had a dual listing on the Shanghai Stock Exchange (also known as A shares) and Hong Kong Stock Exchange (also known as Class H shares). 

中国农业银行IPO在上海证交所(也称为A股)和香港证交所(也称为H股)同时上市。

Following the increase, the Company’s authorised share capital of HK$502,000 was redesignated and reclassified into 5,000,000 class A shares of HK$0.1 each of 2,000,000 Class B shares of HK$0.001 each, having the rights and privileges and subject to the restrictions set out in the Articles of Association of the Company. 

增加法定股本后，本公司的法定股本502,000港元已重新划分及重新分类为5,000,000股每股面值0.1港元的A股及2,000,000股每股面值0.001港元的B股，上述股份附带本公司组织章程细则所载权利及特权并受其限制所限。