Officials say that one or two engines fell away from the plane shortly after takeoff.官员们说飞机起飞后不久就有一两台引擎脱落了。And , O you mortal engines , whose rude throats The immortal Jove's dead clamours counterfeit , Farewell!还有你...
人们把这个组合称作 “ 间隔 ” 的平方.This combination is named the square of the " interval ".他越过把他们分开的年龄间隔的代沟, 和善地加以解释.He explained, good - naturedly, across the little gap of years that separated them.对谐振子来说,能级是等间隔的.For a harmonic osc...