司空见惯

sīkōngjiànguàn

HSK 7

司空见惯 — sīkōngjiànguàn

1. a common occurrence; nothing out of the ordinary

   这件事对他来说是司空见惯了。 zhèjiàn shì duì tā láishuō shì sīkōngjiànguàn le — This kind of thing is nothing new to him.