We can make the changes on timescales that are very fast, "he said."

我们人类却能在很短的时间内对居住地做出适应性的变化。

Although rare on human timescales, over geologic time earthquakes are frequent in the area.

影响地质时期的大地震虽然在人类的历史中非常罕见，但该地区地震活动自古以来就非常频繁。

Studies have shown that both types of memory can be extremely fragile over their respective timescales.

研究结果表明这两种记忆模式在经过相应的时间之后，都会变得非常脆弱易逝。

Other researchers are exploring deep timescales to look for climate's influence on our evolutionary origins.

其他研究人员正在探索使用深层时间跨度来证明气候对我们进化起源的影响程度。

Regeneration is vast in its scope and its timescales but almost unimaginably delicate in the undertaking.

从时间和空间上讲，城市重建都是浩大的工程，是一项难以置信的巧夺天工的事业。