你现在可以仅用40美元续费会员，节省了20%。

You can renew your membership now for only $40, a ___savings of 20%.

使用这张优惠券，你可以节省10美元。

By using this coupon, you get a $10 ___savings.

从长远来看，购买一辆省油的汽车能带来显著的节约。

In the long run, buying a fuel-efficient car leads to significant ___savings.