・Nothing has resulted from my (making all the) efforts. 努力が水泡(すいほう)に帰した.

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・Nothing has resulted from my (making all the) efforts. 努力が水泡(_す_いほ_う)に帰した.🔗⭐🔉

・Nothing has resulted from my (making all the) efforts. 努力が水泡(_す_いほ_う)に帰した.

研究社新英和大辞典ページ 217734 での【making all the】単語。