如果一种疾病与数以百计的罕见变异有关，则可能意味着太多人体的生物化学物质是有用的。

If hundreds of rare variants are involved in a disease, they may implicate too much of the body's biochemistry to be useful.

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制药业通常只盯着一条生物化学路径，但是人体远比它复杂。

Pharmaceuticals typically target one biochemical pathway, but the body is much more complicated than that.

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