1·A mysterious, well-dressed gentleman had been observed hanging out around the Houston-area campus, distributing literature about an alien, cubical planet.
人们注意到有位神秘的、衣冠楚楚的绅士住在休斯敦校区散发有关一颗地外立方体行星的资料。
3·It was a hot point of study on the preparation of high valued cubical crystal nano-sized calcium carbonate from calcium carbide residue.
电石渣制备高附加值的立方体晶型纳米碳酸钙成为一个研究的热点。