The fast-spinning star is a pulsar, a superdense chunk of matter left over when a massive star explodes, then collapses in on itself.
这颗快速旋转的恒星是脉冲星，也就是大质量恒星爆炸后经内部坍缩形成的超高密度星体。
If one party refuses to play ball - as Andrew Lansley and the Tories did before the last election, then the prospect for a radical change collapses.
如果其中一个党派拒绝接手——就像AndrewLansley和托利党在上次大选之前所做的事，这项激进改变将毫无前景。
The flaw is, of course, that if at any point one of the steps is not reached, or one of the toy blocks is incorrectly placed, then the whole structure collapses.
当然，缺点是如果在某个步骤的任一点没有完成，或者某个微型建材摆放错误的话，那么整个结构将会倒塌。
The cell then dies, collapses, and flattens to give the fiber used in the manufacture of cotton threads and cloths.
然后细胞死去，干缩变扁，形成可用来制造棉线和布料的纤维。
The cell then dies, collapses, and flattens to give the fiber used in the manufacture of cotton threads and cloths.
然后细胞死去，干缩变扁，形成可用来制造棉线和布料的纤维。
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