词头顺和反常用于双取代的环烷烃.The prefixes cis and trans are frequently applied to disubstituted cycloalkanes.如果象拜耳张力学所估计的那样,小环的环烷烃具有相当大的张力.If the small - ring cycloalkanes are under considerable strain as predicted by the Baeyer stra...
Otters are believed to have been on Earth for 90 million years.水獭被认为存活在地球上已经9千多万年.Long - tail Weasels have long slender bodies. They are related to minks and otters.长尾鼬鼠有着细长苗条的身体. 他们和水貂、水獭是同种的动物.An attempt is being made ...
plans to outlaw the carrying of knives宣布携带刀具为非法的方案The authorities put a price on the outlaw's head.当局悬赏缉拿逃犯.The outlaw hid out in the hills for several months.逃犯在山里隐藏了几个月....
Marge was talking on about free love and communes and drugs she'd read about somewhere.玛吉谈到她在什么地方读到的关于性解放,群居,吸毒等等.Esoteric tradition became handed down in spiritual groups, communes, or fraternities.深奥的传统在精神团体 、 公社或...