暴风雪夹着大团的积雪吹过湖面。A blizzard was blasting great drifts of snow across the lake.暴风雪今天袭击了西部地区，导致气温骤降。A snowstorm hit the West today, bringing with it frigid temperatures.他拉开帐篷的门帘，大步走进暴风雪中。He drew back the tent flap and strode...
Early astronomers thought that our planet was the centre of the universe.早期的天文学家认为我们的星球是宇宙的中心。Space scientists and astronomers have taken another step forwards.航天科学家和天文学家又取得了进展。Astronomers used to ask why only Saturn has...
磨碎一汤匙鲜姜，放入平底锅。Grate a tablespoonful of fresh ginger into a pan.然后那些咖啡豆被磨碎，包装好作为咖啡粉出售。The beans are then ground and packaged for sale as ground coffee.我来上菜，你把帕尔马干酪磨碎。I'll dish up and you can grate the Parmesan....
Shortly after implantation the blastocyst wall, the trophoblast, consists of two layers of cells.植入之后不久,胚囊的壁, 即滋养细胞含有两层细胞.The blastocyst is then surgically introduced into the uterus of a foster mother.然后通过手术把胚囊引进寄养母体的子宫...