retirement social security的用法和樣例：
例句
- Thus, these expropriated peasants need more to rely on the social pension security system than other peasants.
所以說(shuō)，被征地農民比其他農民群體更需要依賴(lài)社會(huì )養老保險制度。 - The fund mainly comes from donation of social organizations, enterprises and individuals.
這是一種以自主自愿方式籌集養老保險基金的形式。
