由二苯并-1,3-二氧杂 - 环辛烷 -2- 羧酸经两步反应制得, 总收率70%. It was prepared by the reaction of 12 H - dibenzo [ d , g ] [ 1,3 ] dioxocin - 6 - carboxylic acid with acetoxime.
In the future the machines will need spare parts and maintenance.这些机器将来会需要备件和维修保养。Other than blowing up a tyre I hadn't done any car maintenance.除了给轮胎充气外，我没做过任何汽车保养。She was a high-maintenance girl who needed lots of...
Is the lavatory vacant?厕所里没人 吧 ?Is there any lavatory in this building?这座楼里有厕所 吗 ?In British English the toilet in private houses is called the lavatory, toilet, WC ( dated ), or loo ( informal )在英式英语中,私人住宅中的厕所称为thelavat...
The kinesalgia endurance capacity of the Taking medicine after fair markedness raise acgrotus, ameliorate hemodynamics index.服药后可显著增加患者的运动耐力, 改善血流动力学指标.Markedness Theory is one of the important contributions of Prague Sc...
The cello is a member of the violin family.大提琴是提琴家族的一员.She plays the cello in an orchestra.她在管弦乐队中演奏大提琴.His cello technique is unique.他的大提琴(演奏)技巧是独一无二的....
Buying budget-priced furniture needn't mean compromising on quality or style.买价钱经济的家具并不意味着就要牺牲质量和样式。The shops also offer a keenly priced curtain-making service.这些商店也提供价格优惠的窗帘制作服务。The merchandise is reasonably priced...
He had lent the bungalow to the Conrads for a couple of weeks.他把那间平房借给康拉德一家住了两三个星期。We have asked the Conrads to come for dinner on Friday evening.我们已邀请康拉德一家在星期五晚上来吃饭....
She hoards her money - she never spends it.她积蓄钱,但从来不花钱.A squirrel hoards nuts for the winter.松鼠为过冬贮藏坚果.The money the miser hoards will do him no good.守财奴积财,对自己毫无好处....
我知道这是他拉拢我,好让我俯首贴耳地为他效劳.I knew he was trying to wheedle me into being at his beck and call.横眉冷对千夫指, 俯首甘为孺子牛.Fierce - browed , I coolly defy a thousand pointing fingers ; headbowed , like a willing ox I serve the children....