The necessary material of 2 - ( 2 - methoethyl ) acetaldehyde diethyl acetal was synthesized in addition.另外还合成了必需原料 2- ( 2- 甲氧基乙氧基 ) 乙醛二乙醇缩醛.Butyraldehyde 1,2 propanediol acetal was synthesized by using stannous chloride...
These lines make far more sense when declaimed than when simply read out.这些台词用朗诵比起单纯的读效果要好得多.He raised his right fist and declaimed: "Liar and cheat!"他举起右拳高喊：“骗子，骗子！”She declaimed the famous opening speech of the play.她慷...
He was dazzled by the gaiety and splendour of the metropolis.大都市的花花世界使他感到眼花缭乱.They see nothing but gorgeousness and splendour.他们所看到的只是豪华和奢侈的场面.The company and the splendour which he met there were not to the Baronet'...
The two men swapped places, always extinguishing the light when they changed over.那两名男子几次互调位置，并且每次交换时都会先灭了灯。This is a new method of extinguishing forest fires.这是一种扑灭森林之火的新方法.Market needs instead of the traditional fire -...