They may be wise to err on the side of caution.

他们宁可失之过于谨慎也不冒风险也许是明智的。

《柯林斯英汉双解大词典》

They should err on the side of consumer safety.

他们可能会因为消费者安全的立场而犯错。

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But you can't quantify exactly, so err on the safe side.

不过你没法子知道准确数量，所以这点小错在安全线以内。

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But Dr.Chan says it is always better to err on the side of caution when dealing with public health issues.

VOA: standard.2010.01.18

"We don't want to rob people of a constitutional right but - I kind of don't like saying this, but I'm going to do it, and that is - to err on the side of protection is the chance sometimes we have to take."

VOA: standard.2010.05.06

We also tend to err on the side of doing something rather than nothing.

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As is also typical in such situations, I chose to err on the side of safety.

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No matter who's right, parents will err on the side of protecting their children.

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