by leaps and bounds

US /baɪ liːps ænd baʊndz/
UK /baɪ liːps ænd baʊndz/
"by leaps and bounds" picture
1.

飛躍的に, 急速に

very quickly; rapidly

:
The company's profits grew by leaps and bounds this quarter.
今四半期、会社の利益は飛躍的に伸びた。
Her English improved by leaps and bounds after she moved to London.
ロンドンに引っ越した後、彼女の英語は飛躍的に上達した。