At the same time, the local government has decided to plant trees in and around the region because trees can absorb some of the pollution.
与此同时，政府也已经决定在受污染地及附近种植树木，因为树木可以吸收部分污染气体。The U. S. Embassy's daily air-pollution readings, sent out on Twitter, typically alternate between "hazardous" and "very hazardous. "
美国大使馆每天在Twitter上发布的空气污染指标总是在“危险”和“重度危险”之间变换。There is no denying the fact that air pollution is an extremely serious problem: the city a should take strong measures to deal with it.
无可否认，空气污染是一个极其严重的问题：城市当局应该采取有力措施来解决它。Scientists at the EPA have long favoured such a ruling, which did not contain any specifics about reducing emissions of the pollutants.
环保局的科学家们长期以来倾向于这样一条原则，就是不抑制任何可以降低污染物排放的具体措施。For were the body defiled, it would be likely to be purified and sanctified, rather than polluted.
要是身体真的能被污染的话，那他很可能得到了神圣的净化，而不是被污染了。The Iranian capital Tehran is at the best of times - one of the most polluted cities on earth.
即使在环境状况最好的时候，伊朗首都德黑兰仍然是世界上污染程度最严重的城市之一。Soil contamination is one of the important national and global environmental problems and waits to be remediated by innovatory technology.
土壤污染是目前许多国家和全球面临的一个重大的环境问题，有待创新技术进行整治。When the Pittsburgh Post-Gazette investigated the matter, it discovered that the spinoff group had "no citizen membership of its own. "
（毫无疑问是在搬弄是非，意图推卸科氏对造成的污染应付的责任）当匹兹堡邮报深入调查此事时发现该机构不具备“市民会员资格”。For this to be safe, scientists have to be sure the material could never leak out and contaminate water supplies or rise up to the surface.
为了保证安全，科学家们必须确保这些物质决不可能泄漏出来，以至于污染水源或者升至地表。