プログレッシブ和英中辞典(第4版)の解説
いっぱつ【一発】
❶〔一度撃つこと〕a (single) shot
獲物を一発で仕留める
down one's quarry with a single shot
鹿をねらって一発撃つ
fire a shot at a deer
❷〔一回なぐること〕
その男に一発お見舞いしてやった
I dealt him a blow.
❸〔一回だけの試み〕
一発で当たりを取る
gain success on one's first try [attempt]
一発勝負
〔試合〕a single-bout [single-game] match
バッターは次の球で一発勝負に出たが三振した
The batter went for broke on the next pitch and struck out.
一発やってみよう
Let's have a go at it.
今年の賃上げは一発回答で決まった
This year's wage increase was decided in the first round of bargaining.
一発屋
〔野球で〕a slugger；a home-run batter；〔芸能界で〕a one-hit wonder；〔映画界で〕a one-film wonder