2 sentences

1. 对他来说，这点钱微不足道。

   duì tā lái shuō, zhè diǎn qián wēi​bù​zú​dào.

   To him, this amount of money is negligible.

   Source: Dong Chinese Dictionary

2. 他心胸狭隘，总是为了一些微不足道的小事斤斤计较。

   tā xīn​xiōng xiá'ài, zǒng​shì wèi​le yī​xiē wēi​bù​zú​dào de xiǎo​shì jīn​jīn​jì​jiào.

   He is narrow-minded and always fusses over trivial matters.

   Source: Dong Chinese Dictionary