As there was no evidence that hazardous waste was buried at the mine, investigators speculate that the source of dioxins may be natural, perhaps due to a prehistoric forest fire.

由于没有证据表明该矿埋有危险废物，调查者认为该例二恶英的来源可能是一个自然过程，也许归因于史前森林大火。

youdao

The Ben Lui surveyors said they had buried a time capsule at the source, including some money and documents relating to this project.

项目测量员说，他们已经在水源区埋下了一个时空胶囊，里面包括一些钱和有关此次项目的资料文献。

youdao

With farms buried by mud and rock, Rio has lost its most reliable source of fruit and vegetables, sending their price rocketing.

由于泥浆和岩石掩埋了农地，里约热内卢失去了蔬果的最可靠来源，蔬果价格猛涨。

youdao

The fact that Google, the industry's new giant, sits on a foundation of open-source code buried the idea that it was not powerful or reliable enough for heavy-duty use.

ECONOMIST: Computing

But with all of this attention, Olymbos is once again difficult to find, now buried beneath a stampede of tourists who have become the villagers' main source of income.

BBC: The lost world of Olymbos