saving可数吗

例句：

She was tricked out of her life savings.

她被骗走了一生的积蓄。

I paid for the damage out of my savings.

我用自己的积蓄赔偿了损失。

I paid the cheque into my savings account.

我把支票存入我的储蓄账户。

He put all his savings into buying a boat.

他用全部积蓄买了一条船。