He rested one of his crutches against the rail.他把一根拐杖靠在栏杆上。After the accident I spent six months on crutches .事故后我用了六个月的腋杖。When he broke his leg he had to walk on crutches.他腿摔断了以后,不得不靠拐杖走路....
When he broke his leg he had to walk on crutches.他腿摔断了以后,不得不靠拐杖走路.I was on crutches for a while.有一段时间我拄拐。Good news goes on crutches.好事不出门。I can walk without the aid of crutches...我不用拐杖也能自己走。After the accident I spent six...
METHODS: The target compound was prepared by the bromination and amination reaction.方法: 用溴代及胺化反应合成了四甲基吡嗪衍生物.The effects of triacetoneamine concentration on hydrogenation and amination were discussed.论述了三丙酮胺纯度对加氢和还原胺化反应的影...
She was addicted to barbiturates.她对巴比妥酸盐产生了依赖性。Barbiturates are used for their calming, sedative effects.巴比妥酸盐类具有镇静 、 安神作用.Barbiturates, bromides, tranquilizers and antidepressants.巴比妥酸盐 、 溴化物 、 镇静剂和抗抑郁剂....
Lead was one of the metals known to the ancient world.铅是早在古代就已知的金属之一。Metals expand when they are heated.金属受热会膨胀。What spurred them on was alchemy, the'science " of changing ordinary metals into gold.激励他们的是炼金术, 即把普通金属...
It was the almost furtive restlessness and irritability that had possessed him.那是一种一直纠缠着他的隐秘的不安和烦恼.All organisms have irritability while alive.所有生物体活着时都有应激性.Nim released some irritability of his own.尼姆发泄出一点怒火....