...people travelling backwards and forwards to and from London.往返于伦敦的人He stood a few moments, rocking back and forwards on his heels.他站了一会儿，踮着脚跟前后摇晃。She fell forwards on to her face...她一头栽倒在地。Space scientists and astrono...
Draw the floss backwards and forwards between the teeth.将牙线在齿间来回拉动。He controlled the car until it was pointing forwards again.他稳住车子，直到它又朝前开去。He stood a few moments, rocking back and forwards on his heels.他站了一会儿，踮着脚跟前后摇晃。...
我们和那些政治家之间的关系很不稳固。There is an uneasy relationship between us and the politicians.这项研究犹如建在流沙之上，基础极不稳固。The research seemed founded on quicksand.这项和平条约建于不稳固的基础上.The peace treaty rests on shaky foundations....
随后,叠氮化脒异构化生成氨基四氮杂茂.Guanyl azide is then isomerized to aminotetrazole.黄樟油素经碱异构化可得到治疗高血压症的有效药物 —— 甲基多巴的中间体——异黄樟油素.Isomerization of safrole can afforded isosafrole - the intermediate of the effective antihypertensive agent ...
As covetousness is the root of all evil, so poverty is the worst of all snares.正如贪婪是万恶之源一样, 贫穷是最坏的陷阱.Poverty want many thing, but covetousness all.贫穷可满足;欲望却难填.Covetousness is the mother of ruin and mischief.贪婪带来不幸,贪婪导致毁灭...