Helium is a very light gas.氦是一种非常轻的气体。A synthetic element produced in trace quantities by helium isotope bombardment of curium.锎一种合成元素,由氦同位素轰击锔可得到微量的这种元素.helium balloons for the children’s party儿童聚会用的氦气球Helium is a gas u...
"Terminator 2" finally made $200 million, which was considered to be the break-even point for the picture.《终结者2》的票房最终达到了两亿美元，被认为是收回了影片的制作成本。The terminator is the boundary between day and night.地影界线就是白天和黑夜的边界.Of particula...
直线是两点之间最短的距离.A straight line is the shortest distance between two points.在超级市场里, 坎迪德选一条最短的结账队来排.At the supermarket, Candida chose the shortest checkout line.这是我打过的新中最短的一封信.This is what I have beaten new middle the shorte...
潜水艇没等军舰靠近就及时潜入水下了。The submarine had had time to submerge before the warship could approach.不一会儿, 潜水艇内所有的东西都扣紧了.Within a short time, everything on the submarine was buttoned up.我们用声呐系统观察到两条潜水艇.We picked up two submarines ...