This orbiting telescope is the largest optical instrument in space.这种轨道望远镜是宇宙中最大的光学仪器.Let's pretend we're on the spaceship orbiting round the earth!让我们假装是在沿轨道绕地球运转的宇宙飞船上!Twenty incoming flights were stacked up ...
Sam's mother said her son had a good upbringing and schooling.萨姆的母亲说她儿子家教好，受过良好教育。Sam stood his ground and got a blow that stunned him.萨姆站在原地，被一下打昏了。Eventually Sam persuaded her to accept an offer of marriage.最终萨姆说服...
The choice of players for the team seemed completely arbitrary.看来这个队的队员完全是随意选定的。You can make an arbitrary choice.你可以随便做选择.He makes unpredictable, arbitrary decisions.他做的决定难以预料, 主观武断....
最好让转子自由旋转.It is best to allow the rotor to rotate freely.克里斯·雷茨勒已制造出了一种叫波转子的机器的样机。Chris Retzler has built a prototype of a machine called the wave rotor.转子在其凸角之间的三个面上有凹槽.The rotor has recesses in its three faces between ...