1·Old birds are not to be caught with chaff.
有经验的人不易受骗上当。
—— 《新英汉大辞典》
2·Fish is too clever to be caught with chaff.
鱼太聪明了，是不能用糠饵钓得到的。
3·Old birds are not to be caught with chaff .
有经验的人不易受骗上当。
4·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。
5·Frederick the great is 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。
6·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。