For example, module recycling or shuffling could generate new gene products without destroying the old ones or requiring duplication.
例如，模块的重新利用或迁移会在不破坏旧有模块或无须其有拷贝的情况下生成新的基因产物。
It was difficult to save the palaces and buildings without destroying their old beauty.
要修复这些宫殿和建筑，并保持它们原来的美，是很困难的。
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