亚胺基杂环丙烷季铵盐的阳离子,一定是按协同反应的方式开环的.The aziridinium ions must all be opened by a concerted process.偶氮杂环丙烷是一类重要的 、 环内张力颇大的化合物.The diazirines are interesting , highly strained ring systems.在最佳反应条件下,环丙烷羧酸异丙酯的产率达92%.Under the opti...
The players strutted and posed for the cameras.运动员昂首阔步,摆好姿势让记者拍照。Peacocks strutted on the lawn.孔雀在草坪上神气活现地走来走去.A pigeon strutted along the roof, cooing rhythmically.一只鸽子沿着屋顶大摇大摆地走, 有节奏地咕咕叫....
Mr Acton has a charge account at the garage on the corner.阿克顿先生在街角的那家修车厂有信用帐户.We advertised our garage sale in the neighborhood paper.我们在当地的报纸上刊登了我们的现场旧货出售广告.The car knocked against the garage door and damaged it.汽车撞在车房门...
Brevet is a form of military commission formerly used in US armies.名誉晋升是美军曾用的一种军衔.Brevet dropped his eyes.布莱卫把眼睛低下去.Judges with an international brevet are integral to the development of Acrobatic Gymnastics.国际裁判员要全身心地为发...
She has a reputation for getting at the guts of a subject and never pulling her punches.她论事一针见血是出了名的,从来都是直言不讳。It takes more guts than I've usually got to go and see him.我需要鼓起更大的勇气去见他。Most have worked their guts out ...
His remarks amounted to an indirect appeal for economic aid.他的话相当于拐弯抹角地请求经济援助。Consumer spending on sports-related items amounted to £9.75 billion.消费者在体育相关产品上的花费共计97.5亿英镑。His remarks amounted to an indirect appeal for eco...