磨炼出和顶级车手一样的驾驶技术是一项极大的挑战，这项挑战有着让人难以置信的沉溺感和满足感。
The immense challenge of honing the same level of driving skill as a top racing driver is unbelievably addictive and satisfying.
这个物体令人难以置信的密度使它内部受到极大的压力。
But it's been mostly cannibalized by its pulsar companion, and is now just a shadow of its former self. The's incredible density makes it subject to great internal pressure.
极大的射电流量同极小的角经集于一身，意味着这些发射源有难以置信的高表面亮度。
The combination of very large radio flux and exceedingly small angular size means that the sources have a fantastic surface brightness.
我也免费发布(有时是难以置信的便宜的)Mac软件，却也面临极大的敌意。
I have also release free (and, in some cases, incredibly inexpensive) Mac software and was greeted with hostility there as well.
接着，令人难以置信的事情发生了：在科学家称为寒武纪爆炸的一个相对短暂的时期内，生命极大地扩展成多细胞形式。
And then something incredible starts to happen: a tremendous expansion of life into multi-celled forms during a relatively brief period that scientists call the Cambrian Explosion.
接着，令人难以置信的事情发生了：在科学家称为寒武纪爆炸的一个相对短暂的时期内，生命极大地扩展成多细胞形式。
And then something incredible starts to happen: a tremendous expansion of life into multi-celled forms during a relatively brief period that scientists call the Cambrian Explosion.
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