プログレッシブ和英中辞典(第3版)の解説
ふんふん【ふんふん】
uh-huh (▼擬音語)
- 彼は私の説明をふんふんと聞いていた
He uh-huhed as he listened to my explanation./He was going “uh-huh, uh-huh” as he listened to me.