| 释义 |
DEFINITIVE EXAMPLES 权威例句〔concentration〕High concentrations of toxic elements were found in the polluted areas.在被污染地区发现了高浓度的有毒元素。剑桥高阶〔unjustifiable〕Poisoning the earth's atmosphere is ecologically and morally unjustifiable.污染地球的大气在生态上和道德上都是不能接受的。朗文当代Farms in the infected area have been closed off in an attempt to contain the disease.为阻止该病扩散,受感染地区的农场都被关闭了。剑桥国际 |