Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts.大多数连于芳核能被直接取代的基团仅限于重氮盐.Severe steric effects at the reactive carbon would impede the substitution.大的立体效应阻止在碳上的取代.We use saccha...
In my experience a straight substitution of carob for chocolate doesn'twork.根据我的经验，用角豆制品直接代替巧克力行不通。We use saccharin in substitution for sugar.我们用糖精代替糖.Substitution, No.3 for No.4.换人,4号下, 3号上....
哈里继承了这座房子以及相当大的一片土地。Harry inherited the house and a sizeable chunk of land.灯熄了，屋里陷入一片漆黑。The light went out, and the room was plunged into darkness.试着去理解在这片土地上生息的人们。Try to get a feeling for the people who live here....
He lived alone in his house in Saville Row , whither none penetrated.他独自一人住在萨维尔大街的寓所里, 没人进去过.He knows neither his whence nor his whither.他不知道从哪里来,到哪里去.Whither went all the tourists and pedlars with strange wares?他们都到哪里去了...
我们在人陪同下穿过一条低矮的门道。We were escorted through a low doorway.她必须低头通过低低的门道.She had to duck to get through the low doorway.技术革新的门道很多.There are all sorts of possibilities for technical innovation....
在信号电路中,以半导体开关驱动舌簧继电器;在其它程序动作电路中,以半导体开关驱动功率继电器.Semiconductor switches actuate reed relays for signal circuits or power relays for other functions.这个摆有个小舌簧,舌簧扣在轮子的齿上.The pendulum has a little tongue and this tongue goes ov...
He got sent off for deliberate handball in the 32nd minute.他在第32分钟时因故意手球犯规被罚下场。The replay shows that it was a handball.重放显示那是一个手球。Then you would get him a handball set.那你可以给他买一套手球.a penalty for handball因手球犯规而罚点球...
He continues to insulate his country from the contagion of foreign ideas.他继续使本国远离外来思想的侵袭。Home owners are being encouraged to insulate their homes to save energy.当局鼓励房主给住房加隔热装置以节约能源。Asbestos can be used to insulate a cook...
Their ears were still attuned to the sounds of the London suburb.他们依然很熟悉伦敦市郊的喧闹声。Margaret resides with her invalid mother in a London suburb.玛格丽特同她病弱的母亲住在伦敦郊区。Anna was born in 1923 in Ardwick, a suburb of Manchester.安娜于1...