Surprisingly, calcium supplements may be contaminated with lead, because the sources of calcium in supplements—like seashells or cow bones—are contaminated.

令人惊讶的是，钙的补充品中可能受到铅的污染，因为主要的钙补充品像海贝和牛骨都可能被污染。

youdao

Remediation has involved the identification of contaminated areas in the villages, removal of all contaminated soil, its disposal in secure landfill sites and its replacement with clean soil.

整治工作涉及到确认村庄里的污染区域，除掉所有受污染的土壤，将受到污染的土壤丢弃在安全填埋场并且用干净的土壤进行替换。

youdao

The contaminated meat is coming from cattle that were fed rice straw contaminated with cesium isotopes ejected by the disaster-crippled Fukushima No. 1 nuclear power plant.

生产受污染的牛肉的牛都被喂食了受污染稻草，这些稻草受在福岛第一核电站爆炸灾难中散发出铯同位素污染。

youdao

"The Iraq war contaminated democracy promotion, so that when you talk about democracy promotion in the region, people think invasion."

VOA: standard.2010.05.19

It is a bleeding or spilling into successive signs in such a way that it perpetually leaves what Derrida calls "traces." That is to say, as we examine the unfolding of a speech act, we see the way in which successive signs are contaminated.

它渗入或涌入一系列符号之中,并且永恒地留下了德里达所说的，“痕迹“，也就是说，如果我们研究言语行为，我们就能看到连续的符号被污染的方式。

耶鲁公开课 - 文学理论导论课程节选

You've probably seen agar plates, if you smear a solution that's contaminated with bacteria on it, then that bacteria will grow on this agar rich medium and you'll get many, many copies of the bacteria that you've smeared at low density onto the plate.

你们大概见过琼脂培养基,如果将有细菌的溶液涂抹在培养基上,细菌就会在富含琼脂的培养基上生长,你会得到许多许多细菌,即使你只涂抹了低浓度溶液

耶鲁公开课 - 生物医学工程探索课程节选

It recommends collecting DU fragments, covering contaminated points with asphalt or clean soil, and keeping records of contaminated sites.

BBC: UK to aid Iraq DU removal

Norovirus can be spread through contact with contaminated surfaces or objects, by contact with an infected person, or by the consumption of contaminated food or water.

BBC: Winter vomiting cases at 1.1 million

The rate went up to 60% when surfaces had become contaminated just an hour earlier and down to 33% when surfaces had been contaminated for 18 hours.

BBC: Image of a boy sneezing