It's a matter for personal decision, ie Everybody must decide for themselves.

这是须由个人作决定的问题.

辞典例句

As a personal decision I would never buy jumbo eggs.

从我个人来讲,我是不会买超大号鸡蛋的.

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We're not concerned it's anymore susceptible to injury. It was a personal decision.

我们不要对伤病太敏感, 这是个人的决定.

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They may also reserve a bill to allow the Sovereign to make a personal decision.

他们也会保留议案,允许君主自己做决定.

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