► 名詞一筋 [(2)ひとすじ]
meaning: focus rank: 3☆
彼は
ラーメン作り一筋で50
年やってきた ⇨ He has been making ramen only for 50 years
(☛ Focus on perfecting one thing, typically professional skills)More examples:- 彼は一筋縄では行かない男だ ⇨ He is not an easy guy to deal with
- 社会を変えるというのは一筋縄では行かない ⇨ Changing the society is not easy, there is no simple solution