shrewd /ʃru:d/ adj. 机灵的,敏锐的,精明的:a shrewd answer 机敏的回答;a shrewd eye 敏锐的目光 He is a shrewd businessman. 他是一个精明的商人。[考句]Although he has had no formal education, he is one of the shrewdest businessmen in the company.尽管他没有接受过正规教育,但他是公司中最精明的生意人之一。

[辨析]acute, keensharp辨见acute