人们开始四下察看，想弄清楚那声响来自何处。People began looking across to see where the noise was coming from.不难看出她从何处获得的这种自我感觉。It's not hard to see where she got her feelings about herself.不知从何处响起天籁般的音乐。Heavenly music swelled from nowhe...
气体的压强是由这些粒子对容器壁的撞击造成的.The pressure is caused by the bombardment of the container walls by these particles.依照理论, 物质只能在粒子 - 反粒子对中产生.According to the theory, matter can only be created in particle - antiparticle pairs.湮灭能产生...