The planetarium staff also prepared talks for radio broadcast.天文馆的工作人员还要准备讲稿给电台广播.On his days off, he takes them to the Museum of Natural History or the Planetarium.休假的日子里，他就带他们去自然历史博物馆或是天文馆。The motions of the stars can ...
Yesterday's emphatic victory was their fifth in succession.昨天的大胜是他们连续第5场胜利。a succession of visitors络绎不绝的来访者He gave forth a series of works in rapid succession.他很快连续发表了一系列的作品....
Woollen cloth and timber were sent to Egypt in exchange for linen or papyrus.羊毛料和木材送到埃及以换取亚麻布或纸莎草纸.The Egyptians wrote on papyrus.埃及人书写用薄草纸.Since papyrus dries up and crumble, very few documents of ancient Egypt have sur...
Doesn't the dipsomaniac know that he is ruining his liver and shortening his life?酗酒成瘾的人不都知道狂饮烂醉会损肝折寿 吗 ?Instead, sarcomere shortening occurs when the thin filaments'slide " by the thick filaments.此外, 肌节的缩短发生于细...