31.7 million retirees had participated in the basic pension insurance program.
3170万离退休人员参加了基本养老保险。
）31.7 million retirees had participated in the basic pension insurance program.
3170万离退休人员参加了基本养老保险。
声明：以上例句、词
分类均由互联网资源自动生成，部分未经过人工审核，其表达
不代表本软件的观点；若发现问题，欢迎向我们指正。
