SHARP

razor-sharp a. 锋利的, 犀利的 sharp cookie sharp practice 卑鄙交易 [法] 不正当的行为, 不择手段的行为, 欺骗 sharp tongue n. 刀子嘴；说话刻薄；言辞尖刻 sharp as a tack sharp s sharp cookies sharp practices sharp tongues Sharp County sharp rush sharp rushes sharp elbows sharp power sharp end of one's tongue