Allen is a wiseacre who hears the grass grow .

艾伦是个 自作聪明的人，对 什么 事 都 非常 敏感。

Such sayings themselves grow harder and adhere more firmly with age and it would take many blows with a trowel to clean an old wiseacre of them .

这种话的本身也愈 经久而愈牢固了， 必需用瓦刀 一再 猛击之，才能 粉碎它，使一个 自作聪明的老人不再说这种话。