専門 せんもん知識 ちしき
semmonchishiki

Noun

1. expertise; specialized knowledge; technical knowledge; expert knowledge

この しゅ専門 せんもん知識 ちしき日常 にちじょう生活 せいかつとはほとんど関係 かんけいがない。
kono taneno semmonchishikiwa nichijōsēkatsutowa hotondo kankēga na. i
This kind of specialized knowledge has very little to do with daily life.