Iwelei, with its sin and shame, ceased to exist on the very day we arrived . 伊韦雷这个罪恶而可耻的地方就在我们到达的那天被查封了。
"aerodynamics" defines the pressure fields and loads that exist on a launch vehicle due to the reaction of ambient flow . “空气动力学”规定了由于绕流反作用在发射飞行器上存在的压力场和载荷。
Astronomers are using radio telescopes to listen for the signals from civilizations that they believe exist on thousands of planets throughout our galaxy . 天文学家们正在用射电望远镜探寻他们认为存在于我们星系中的千万颗行星上的文明世界发来的信号。