1. 他既是藝術(shù)家，又是科學(xué)家，同時(shí)還是個(gè)精明的生意人。
   He's an artist, a scientist and a shrewd businessman (all) rolled into one.
2. 他是一個(gè)精明的商人，深知自己的利益所在。
   He was a shrewd businessman. He knew which side his bread was buttered on.
3. 他的談判技巧使他贏得了精明戰(zhàn)略家的名聲。
   His skill in negotiating earned him a reputation as a shrewd tactician.
4. 他是個(gè)精明的、有時(shí)候冷酷無情的對(duì)手。
   He is a shrewd and sometimes ruthless adversary.

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