将联合加成 - 消除反应的结果称为缩合反应.The combined addition - elimination sequence is referred to as a condensation reaction.与氰氢酸的加成是碱催化的.The addition reaction with hydrogen cyanide is base - catalysed.溴化氢加成的最后一步,是负离子亲核试剂的附加.The additio...
Daisy called her daffy, but goodhearted.黛西说她傻乎乎的，但心肠很好。That comedian sometimes acts a bit daffy.那位滑稽演员有时行为古怪.Kelly was acting daffy because she was so happy.凯利高兴得发狂....
如果不去动的话，冬萝卜会在春天开花结籽。If unused, winter radishes run to seed in spring.这些杜鹃花有些将在今年首度开花。Several of these rhododendrons will flower this year for the first time.可惜的是，竹子开花后便会枯死。Sadly, bamboo plants die after flowering....