而生物技术制药可以提供抵抗这一灾难的利器，其中原因有二：第一，这些技术非常难摹仿，所以被称为“生物相似药”的普通替代品很难进入市场；
Biotech drugs provide something of a hedge against this coming calamity, for two reasons. First, they are much harder to copy, so generic equivalents (called "biosimilars") will be slow in coming.
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