交作业：

周日，乔·拜登总统签署了一项法案，该法案提高了当前和以前的公共雇员的社保支付，影响了近300万人，他们因担任教师、消防员、警察和其他公共服务工作而获得养老金。

This Sunday President Joe Biden signed a bill which increases Social Security payments for current and former public employees. It has impact on nearly 3 million people who get pensions for their jobs, such as teachers, firefighters, police officers, and other public service jobs.