The social security work is making constant progress. More than 87.5 million workers and 22.5 million retirees have participated in pension insurance mutual assistance programs.是什么意思_The social security work is making constant progress. More than 87.5 million workers and 22.5 million retirees have participated in pension insurance mutual assistance programs.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句