decisive
🇺🇸
/dɪˈsaɪsɪv/
🇬🇧
/dɪˈsaɪsɪv/
very important for the final outcome
Her vote was decisive in choosing the winner.
她的投票對選擇獲勝者至關重要。
able to make quick and firm decisions
A good leader must be decisive when facing challenges.
一位優秀的領導者在面對挑戰時必須果斷。