A car loan is a complex transaction that hinges not just on the price of a car, but also on its trade-in value, extras such an extended guarantee or rust proofing, and most important, the interest rate.

汽车贷款是一个复杂交易，它不仅和汽车价格挂钩，也和其抵换价值，额外费用与如延长保修时间或者防处理以及最重要有关。

That rust protection undercoating, it's actually a great deal.

涂防漆其实是很重要。

But one shouldn't confuse rust-resistant with rust-proof.

但人们不应将抗与防混淆。

The submarine's nuclear reactors, officials say, are self-contained in what amounts to rust-proof metal vaults, and the Soviet say the reactors were shut down prior to sinking.

一些工作人员表示，这艘潜艇核反应堆内置于防金属弓体内，苏联方面也表示，这些反应堆在沉没之前就关闭了。

Jukeboxes, loudspeakers, tinfoil, rust-proof steel, synthetic fabrics, all in one book.

点唱机、扬声器、锡纸、防钢、合成纤维，尽在一书中。

We need to paint the underneath with a rust preventer.

【underneath】我们需要用防漆把底部刷一下。