Through nitrosation , hydrogenate reducion, and acylate three steps, the yield surpass 80 % for the diethyl malonate.收率相对于丙二酸二乙酯达到了80%以上.The necessary material of 2 - ( 2 - methoethyl ) acetaldehyde diethyl acetal was sy...
Nothin but a piteous lowercase $ 500 justness in a chronicle shelter policy.只有一份可怜的500美元的人寿保险.The following expressions match all lowercase letters and the hyphen.下面的表达式匹配所有小写字母和连字符.All street names will consist of lower...
They have some of the loveliest patterns.那里有几种非常可爱的款式.The loveliest doll in the last analysis is merely sawdust.说到底,最可爱的布娃娃也只不过是锯末做成的.And fancy all her loveliest dreams impart.给我的想嫁万种梦幻美妙婆娑....
A chill shiver rippled over his skin.他浑身打了个冷战。A sudden gust of cold wind made me shiver.一股突然刮来的冷风吹得我打哆嗦.A violent shiver convulsed him.剧烈的颤抖使他抽搐不已。The thought of someone suffering through a mistake of mine makes me shive...
救援人员已经搜遍了30平方英里的范围。Rescue crews had scoured an area of 30 square miles.托格值的范围已经扩大至15托格。The range of tog values has been extended to 15 togs.奈杰尔一直在他家周围10英里的范围内找工作。Nigel has searched for work in a ten-mile radius around hi...
The match had a thrilling finale, with three goals scored in the last five minutes.比赛结尾非常精彩，最后5 分钟连进3 球。... the finale of Shostakovich's Fifth Symphony...肖斯塔科维奇第五交响曲的末乐章a rousing finale to an evening of enthralling ...