make public speeches
发表公开演讲
以上为机器翻译结果，长、整句建议使用 人工翻译 。
His father explained that it taught people how to make public speeches.
他的父亲解释说，它教会了人们如何公开发表演讲。
youdao
She traveled around the country to make many public speeches about news media issues.
VOA: special.2009.04.26
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