1.the crux of the matter; the crux of an argument.
事件的关键;争论的点
2.the crux of the matter is that attitudes have changed.
问题的关键是态度已经改变了。
3.Where does the crux lie?
结症在哪里?
4.Since it is a priori proposition in the science of criminal law that a crime is a actus reus, omission undoubtedly has the nature of actus reus-the crux is to explain it reasonably.
5.The author mainly describes the design and key techniques of the jacquard “Rainbow Crepon”, with analyses and researches made on some technical cruxes in the variety design of its kind.