Such changes are all but invisible over the short time scale of modern observations, and, it is argued, they are usually obscured by innumerable gaps in the imperfect fossil record.

这些变化在现代观测短时间范围内几乎是看不见的，而且，有人认为，这些变化常常被不完善的化石记录中的无数空白所掩盖。

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As expected, the memory circuit in the brains of older monkeys didn't sustain activity as well as in younger monkeys, even though they still performed accurately at this short time scale.

正如研究者们所料，年老猴子大脑中的记忆回路不像年轻的猴子那样能长时间保持活跃，尽管它们也和年轻的猴子一样在2.5秒钟这样短的时间之内也能保持清晰的记忆。

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Though the study was short and small-scale, the results say something about how the ways in which we choose to move our bodies affect our body chemistry, and possible long-term health.

FORBES: Hard And Fast Or Slow And Steady? Choice Of Exercise Matters To Health, Study Says

As noted above, even a quarter-percent increase in short-term interest rates would require a full-scale reversal of QE2.

FORBES: Fed Must Either Reverse QE Or Brace For Impact

The Pentagon, which wanted to keep those wars limited and short, avoided planning for large-scale manufacturing, even after its necessity became obvious.

NEWYORKER: Coming Apart