旋转的涡轮形成了一块真空区域。The spinning turbine creates a vacuum.漩涡是由不断快速旋转的水形成的.A whirlpool is formed by water going round very fast.旋转的陀螺正在失去动量.The spinning top was losing momentum....
A fortunate encounter brought the two friends together after a long separation.两位老朋友长期分离这次才有幸相遇.I often think about those less fortunate than me...我经常想到那些没我这么幸运的人。The first two goals were a shade fortunate...头两个进球都有点碰巧。A...
It intercepts a portion of the light impinging on the photocell.它遮住一部分照射在光电管上的光.Sight is made possible by rays of light impinging on the retina.由于光线射到视网膜上,眼睛才看得见.A wavefront at high radio frequencies or optical frequenci...