How to set primary key with duplicate values based on main primary key?

如何基于主密钥重复值，主键设置？

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The respiratory diseases were the main primary disease, accounting for 37.1%.

患儿原发病类型以呼吸系统疾病为主，占37.1%。

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My main primary opponent was Lonnie Turner, the Ozark lawyer I'd worked with on black-lung cases back in 1975, after his partner, Jack Yates, died.

我主要的初选对手是罗尼·特纳，来自欧扎克的律师，在1975年在黑肺案审理过程中，他的合伙人杰克·叶芝去世之后，我曾和他合作过。

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Williams' main primary opponents are three longtime council members forced to answer at every stop for the various crises the city suffered.

CNN: Can Tony Williams Save D.C.?

Ahead of the GOP primary, a Mason-Dixon poll showed the senator falling behind Akin and the two other main GOP primary competitors in hypothetical match ups among registered Missouri voters.

CNN: Akin bows out of CNN appearance at the last minute

But at that time the main concern was primary, not university, education.

ECONOMIST: Mexico