Idioms and proverbs / Level 5 / Four-character idiom
いっしんふらん
isshinfuran
Meaning
Wholly absorbed in one thing.
In use
一心不乱に練習する。
四方八方
しほうはっぽう
In every direction.
一石二鳥
いっせきにちょう
Killing two birds with one stone.
弱肉強食
じゃくにくきょうしょく
The weak are prey to the strong.
単刀直入
たんとうちょくにゅう
Getting straight to the point.
完全無欠
かんぜんむけつ
Perfect and flawless.
十人十色
じゅうにんといろ
Ten people, ten colours — to each their own.