decay

Buildings are left to decay at the mercy of vandals and the weather.

这些建筑物因人为的肆意破坏和日晒雨淋而破败不堪。

In practice, the agency system has decayed. Most "agents" now sell only to themselves or their immediate family.

实际上，这种代理制已经衰退。现在，大多数“代理人”都只把产品卖给自己或亲近的家人。

Sugar left in your mouth will decay your teeth.

留在口腔里的糖会腐蚀你的牙齿。

The bodies buried in the fine ash slowly decayed.

埋在细灰里的尸体慢慢腐烂了。

If the body has only partially decayed, it is reburied in a smaller cheaper grave, but not for long, the body will be dug up again some time later when it has fully decayed.

如果尸体只是部分腐烂，它会被重新埋葬在一个更小、更便宜的坟墓里，但不会太久，尸体会在完全腐烂后的一段时间里被再次挖出来。

When not removed, plaque causes tooth decay and gum disease.

牙斑没有清除就会导致蛀牙和牙龈疾病。

If left untreated, decay goes deeper and deeper into the tooth.

如果不及时治疗，蛀牙会越来越深。

He pointed out that sugar is a major agent in dental decay, particularly the sugar in sweets, cakes, and soft drinks.

他指出糖是导致蛀牙的主要原因，尤其是糖果、蛋糕和软饮中的糖。