keen as mustard

形容詞

比較不可

(simile) Very keen, enthusiastic, eager.

日本語の意味

非常に熱心で、意欲的な様子を表す / 大変熱狂的で、積極的な態度を示す

He was keen as mustard to volunteer for the weekend fundraiser, offering to coordinate the entire event.

彼は週末の募金活動に非常に意欲的で、自らイベント全体の調整を申し出た。

意味（1）

(simile) Very keen, enthusiastic, eager.

He was keen as mustard to begin the new job, until he learned what it really entailed.