所有流动的水看似一成不变，但实际上内部分成许多广延的面，或者说层，彼此逆向移动。All flowing water, though it appears to be uniform, is actually divided into extensive inner surfaces, or layers, moving against one another.广延空气簇射是高能宇宙射线进入地球大气层的现象.Extensive Air S...
I spoke from the pulpit ad lib.我在讲坛上发表即兴演说。I lost my notes and had to ad - lib the whole speech.我把讲稿丢了,只好临时说了一通.She delivered her lines ad - lib.她是即兴说出的台词....
现在是拿出更多政治务实精神的时候了。It was time now to show more political realism.维珍公司富有冒险精神的创始人理查德∙布兰森Virgin's buccaneering founder, Richard Branson身体和精神的疲劳physical and mental fatigue...