看着护士长离去的身影，这个年轻的护士做了个鬼脸。The young nurse pulled a face at the Matron's retreating figure.他把袋子放进车里，然后驾车离去。He put the bags in the car and drove off.她吓得呆若木鸡，眼睁睁地看着劫匪们离去。Numb with terror, she stared at the departing mara...
原子的分裂the splitting of the atom核反应堆是分裂原子的装置.A nuclear reactor is the apparatus in which atoms are split.碱金属原子的价原子具有两种能态.The valence atom of an alkali - metal atom has two states....
A bright shooting star, or meteor, is an unforgettable sight.明亮的流星，或者说陨石，是番难忘的景象。Like a flash of lightning, the meteor shot across the sky.流星像一道闪光划过天空.It was made by a meteor that fell from space.它是由流星从太空中坠落造成的....