socail old - age insurance的用法和樣例：
例句
- The government plans to extend coverage basic life insurance in society.
國家打算擴大基本社會(huì )養老保險的覆蓋面。 - The social insurance surtax levied from the flow tax is regarded as a effective way for floating the fond on social endowment.
在流轉稅中征收社會(huì )保險附加稅，是可持續籌集社會(huì )養老保險基金的有效途徑。
