焼け石に水a drop in the bucket, a drop in the ocean, (pouring) water on a hot stone
焼け石に水
a drop in the bucket, a drop in the ocean, (pouring) water on a hot stone
辞書の定義
表現
1.
EN a drop in the bucket, a drop in the ocean, pointless exercise, waste of time, (something that is) too little, too late, (pouring) water on a hot stone