It's sort of like a retirement program.

这有点像退休计划。

The Social Security program has changed over the years and has become a more general retirement program that the government operates.

多年来，社会保障计划发生了变化，已成为政府运作的更普遍的退休计划。

In the United States, you may know that we have a retirement – a government retirement – program when you turn 65.

在美国，您可能知道当您年满 65 岁时， 我们有一个退休计划——政府退休计划。