形容詞 astute:

1. marked by practical hardheaded intelligence
   同義詞：sharp, shrewd

1. He is a very astute merchant, and can not accept to be the first offers a price.
   他是個非常精明的商人，不可能接受第一個出價。
2. He is astute in business.
   他做生意精明。
3. It is an astute move to sell just before price goes down.
   正好在價格下跌前脫手，真是精明之舉。

as.tute

adj.（形容詞）
Having or showing shrewdness and discernment, especially with respect to one`s own concerns.See Synonyms at shrewd
敏銳的，精明的：有或顯示出精明和敏銳的理解力或判斷力，尤指對與其相關的方面參見 shrewd

來源：
Latin astôtus
拉丁語 astôtus
from astus [craft] * see wes-
源自 astus [技藝] *參見 wes-

【引伸】
astute.ly
adv.（副詞）
astute.ness
n.（名詞）