have come a long way

US /hæv kʌm ə lɔŋ weɪ/
UK /hæv kʌm ə lɔŋ weɪ/
"have come a long way" picture
1.

大きく進歩する, 長い道のりを経る

to have made significant progress or improvement over time

:
The company has come a long way since its humble beginnings.
その会社は謙虚な始まりから大きく進歩した
You've really come a long way with your English skills.
あなたの英語力は本当に大きく進歩したね。