The infra - red spectra of quinones present a number of interesting features.醌类的红外光谱具有一些有趣的性质.Ethylene and trans - dichloroethylene are both inactive in the infra - red in this region.乙烯和反式二氯乙烯在红外光谱的这个区域都无活性.Infra - red ...
There were some misgivings within the ranks of the media too.媒体内部也存在一些疑虑。I had grave misgivings about making the trip.对于这次旅行我有过极大的顾虑。Don't be overtaken by misgivings and fear. Just go full stream ahead!不要瞻前顾后,畏首畏尾. ...
动作夸张而华美, 有唱段也有宣叙部.The actions are large and colour , there are arias and recitatives.这个唱段中的拖腔特别多.There are a lot of long , drawn - out tunes in this aria.这个唱段要求用小嗓演唱.This part of the opera needs to be sung by female play...
Things might have been different if I'd talked a bit more.如果当时我再多说一点的话，结果或许会不一样。He cracked jokes and talked about beer and girls.他爱说笑话，喜欢谈论啤酒和姑娘。As he talked, an airforce jet screamed over the town.他谈话时，一架军用喷气式飞机在镇子...