小说的引子写道：很久以前，天破了一个大口，（女娲）修补（缺口）时，剩下一小块（石头），于是成了贾宝玉的那块名玉。

The preface begins, "Heaven was once broken and when it was mended, a bit was left unused, and this became the famous jade of Chia Pao Yü."

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但小块草地是一个很小的修补程序。

But the small patch of grass was a very small patch.

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四年前，科学家已经可以使患白化病的老鼠的一小块皮毛变黑，这为研究修补头皮基因来防止头发变灰的可能性提供了动力。

The possibility of tinkering with the scalp's genes to prevent the onset of graying gained momentum four years ago when scientists made an albino mouse turn black in one patch.

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