Filters do not remove all contaminants from water.
过滤器无法过滤掉水中的所有污染物。
《牛津词典》
2
Contaminants found in poultry will also be found in their eggs.
在家禽里发现的污染物，也将会在它们下的蛋里发现。
《柯林斯英汉双解大词典》
3
Fossils are often washed together on-site in a large bath which can allow water and contaminants in the form of contemporary DNA to permeate into the porous bones.