It's also salt water which further reduces the rate of decay.

它也是盐水，进一步降低了腐烂的速度。

Because it's underwater it doesn't receive as much oxygen, and so the decay is a lot slower, Dunn explains. There's also salt water which further reduces the decay.

" 因为它位于水下，所以吸收的氧气少，所以腐烂速度要慢得多。" " 水中盐分也可以进一步减缓腐烂速度。"