关键是备份伞在任何速度下都要有效的打开。
The bottom line is that the parachute must open correctly at any speed.
它告诉我们在任何时间我们运动的速度,以及它的方向,那么,举个例子。
It tells us at any time how fast we are going, and in what direction. So, for example, observe.
如果老化不是化学过程造成的灾难结果,而是由于控制它的基因发生了改变,那么从理论上说,在任何水平上,老化速度都可以被减缓甚至停止。
If ageing is not the result of chemical catastrophe but driven by changes in regulatory genes, it could, in theory at any rate, be slowed down or stopped.
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