挑毛病 (tiāo máo bìng) — to nitpick, to find fault with someone or something

Definition

Examples

• 他总喜欢挑毛病，让人觉得很难相处。
  Tā zǒng xǐ huan tiāo máo bìng, ràng rén jué de hěn nán xiāng chǔ.
  He always likes to find fault, which makes him hard to get along with.
• 别一直挑毛病了，指出问题就好。
  Bié yì zhí tiāo máo bìng le, zhǐ chū wèn tí jiù hǎo.
  Stop nitpicking all the time; just point out the problems.
• 她挑了半天毛病，结果自己也做错了。
  Tā tiāo le bàn tiān máo bìng, jié guǒ zì jǐ yě zuò cuò le.
  She spent a long time finding fault, but in the end she made mistakes too.