出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第156页（222字）
理由正确，说话的气势也很旺盛，例法庭上被告律师理直气壮地替被告辩护，以驳斥原告的控诉。
In court the defendant’s lawyer defended his client in a bold and confident way and overturned the accusations made against him．