军队仍然控制着电视和广播发射塔。Troops are still in control of the television and radio tower.“挑战者”号突然腾起, 笨拙地沿着发射塔上升.Challenger broke free, lumbered past the launch tower.每树立起一座发射塔, 人们都会举办派对庆祝.Every time we put up a mast, they had a par...
White dwarfs provide an important beginning for understanding the material in this chapter.白矮星是掌握本章材料的重要出发点.'Snow White and the Seven Dwarfs', the 1937 Disney classic, has lost none of its original charm...1937...