Based on the reactions , this paper reports research for synthesizing benzaldehyde.简要介绍以此类方法对合成苯甲醛的研究.Natural benzaldehyde is prepared by hydrolysis cassia leaf oil.从桂叶油出发,通过碱性水解制备天然苯甲醛.Pitch resin was synthesized from b...
You can boil the fish fillets on a high setting.可以用高火煮无骨鱼片。Heat the oil and deep-fry the fish fillets.将油加热，然后放入鱼片煎炸。Fillets can made of Cerrobend, which works easily and takes a good polish.成形垫可以用赛罗班德制作,它易于加工,表面光滑....
Most of the butterflies perish in the first frosts of autumn.大多数蝴蝶会在秋天的第一场霜冻来临时纷纷死去。We don't have a computer (perish the thought) and have only recently bought an electric typewriter.我们没有电脑（死了心吧），只好最近买了台电动打字机。Crowns...
She stood up and began to pace to and fro.她站起身，开始来回踱步。The boat was rocking gently to and fro in the water.小船在水中轻轻地来回摇荡。They travel to and fro between London and Paris.他们奔走于伦敦和巴黎之间....