■ enough of a

放在名词前面，表示完全足够称得上这个名词。

John was enough of a fool to agree.约翰竟然同意了，真够傻瓜的。
He was enough of a crack shot to fire three bullets in five seconds at a moving target from about 100 yards.他简直是个神枪手，能够远在大约一百码之外，用五秒钟向一个活动目标发射三颗子弹。

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