manmade pollutant造句

例句与造句

1. Land and aircraft sensors measured levels of a variety of manmade pollutants, including carbon dioxide, ozone precursors and particulate matter.
2. A natural chemical that scrubs many manmade pollutants from the atmosphere has gone into a sharp decline, puzzling scientists who have studied the chemical for decades.
3. Uncounted numbers of dolphins and porpoises are drowned each year in illegal gill nets, or trapped in the nets of tuna fisherman, or butchered for food or poisoned by oil spills and other nasty manmade pollutants.
4. It's difficult to find manmade pollutant in a sentence. 用manmade pollutant造句挺难的