2 sentences for 精 (jīng — shrewd)

1. 要精明，但不要太精明。

   yào jīng​míng, dàn bù​yào tài jīng​míng.

   Be smart, but not too smart.

   Source: CCMatrix

2. 你得精明地花钱。

   nǐ děi jīng​míng de huā qián.

   You have to spend money wisely.

   Source: CCMatrix