self-assurance ·noun
Definition: the quality of being confident about yourself Level: C2
尽管年轻，他在辩论中展现了非凡的自信。
Despite his youth, he displayed remarkable ___self___assurance during the debate.
她在工作面试中展示了必要的自信和沉着。
She showed the necessary ___self___assurance and composure during the job interview.
他在众多听众面前表现出的自信和从容令人印象深刻。
His ___self___assurance and poise in front of the large audience was impressive.