Soot is the product of the imperfect combustion of fuel.煤烟是燃料不完全燃烧的产物.... a wall blackened by soot.被煤烟熏黑的墙壁The parks and squares looked grim under a mantle of soot and ash.在一层烟尘的笼罩之下，公园和广场显得阴沉沉的。Soot is usually the produ...
We have made a conscious effort to devolve responsibility.我们已有意识地下放职责。When the President is ill, his duties devolve on the Vice - President.总统生病时, 其职责由副总统代理.We have made a conscious effort to devolve responsibility...我们已...
Mr. Shell is said to have contravened the regulation.听说史尔先生违反了规定.His behavior contravened the law.他的做法与法律相抵触.When a contestant has contravened the rules.当选手出现犯规的情形时....