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...
她伸手又从衣橱里取出一件运动服。She reached into the wardrobe and extracted another tracksuit.我不开车，公共汽车条件又太糟糕。I don't drive and the buses are quite hopeless.这条裙子会使我的腿看上去又短又粗吗？Does this dress make my legs look too stumpy?...
They departed without uttering a word.他们一言不发地离开了。Seconds after uttering the fateful words'this is easy ', he crashed.说了 “ 这很容易 ” 这句预言性的话后几秒钟, 他的心脏就停止跳动.Were they uttering cries of joy , or of warning , or of so...