石墨层中的碳原子相互连接形成碳环。In graphite sheets, carbon atoms bond together in rings.可分离的碳环化合物环内含七个或七个以下的碳.Isolable carbocyclic compounds contain seven or fewer carbons in the cycle.制取四碳环化合物的特殊方法是在第三十二章中阐述的.Special methods for four ...
Hay had been cut and cowshed had been cleaned.干草也切好了,牛棚也打扫干净了.The farmer herded the cows into his cowshed.农民把牛群赶到自己的牛棚里.Reminiscences of manuscript cowshed: truth, true, trends, real life runs through Mr. Ji Xianlin.《牛棚杂...
If you love life, life will love you back.热爱生活，生活也会厚爱你。We'll go to a meeting in Birmingham and come straight back.我们将去伯明翰参加会议，然后马上回来。The rescuers were beaten back by strong winds and currents.救援人员因风浪太大而被迫中断工作。...
如催促马时用嘴唇发出咯咯声或啪嗒声.To make clucking or clicking sounds with the lips, as in urging on a horse.他躺在那里听著外面的口哨声和啪嗒声吓得发抖.He lay there, shaking with fear , and listened to the whistlings and the patterings outside....