An old bird is not to be caught with chaff.

谷壳捉不到老鸟.

《简明英汉词典》

Old birds are not to be caught with chaff.

有经验的人不易受骗上当.

《现代汉英综合大词典》

Frederick the Great was too old a bird to be caught with chaff.

腓德烈大帝是个不易上当的老奸巨滑.

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Mr Smith is a shrewd man, he is not to be caught with chaff.

史密斯先生是个精明的人, 不会轻易上当.

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He is not a child. I don't think he will be caught with chaff.

他不是个孩子, 我想他不会轻易上当的.

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Mr Adams is a shrewd man, he is not to be caught with chaff.

亚当斯先生是个机灵人, 不容易上当.

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