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.It was intended to impede the apprehension of the person.它旨在妨碍对该人的拘押的.They also impede backmixing of sand.同时也可防止砂子的返混....
It was intended to impede the apprehension of the person.它旨在妨碍对该人的拘押的.They also impede backmixing of sand.同时也可防止砂子的返混.At no time did I make an attempt to impede any investigatory effort.我绝没有试图妨碍过任何调查工作。Severe steric effe...
As a heavy child, she became the object of ridicule from classmates.由于体胖，她成了班上同学嘲笑的对象。Classmates at West Point had ironically dubbed him Beauty.西点军校的同学们曾挖苦地戏称他为“美人”。Her new classmates knew no Latin.她的新同学不会拉丁语。...
The life jacket buoyed her up until help arrived.救生衣使她浮在水上直到获救.He reached over and retrieved his jacket from the back seat...他伸手从后座上取回了自己的夹克。Albert wore a brown suede jacket and jeans.艾伯特穿着棕色绒面夹克和牛仔裤。The velvet jacket ac...
Simon Lane quickly found his niche as a busy freelance model maker.西蒙·莱恩很快找到了适合自己的位置，成了一名忙碌的模型制作的自由职业者。He is now working freelance from his home in Hampshire.他现在在汉普郡的家里从事自由职业工作。He derives his income from freelance work.他...