请问 a proven speech 是什么意思

请问 a proven speech 是什么意思 是have a speech还是make a speech? PRODUCTS WITH A PROVEN TRACK RECORD是什么意思 PROVEN ,TRACK分别什么意思 have a speech含义have a speech 是听演讲还是发表演讲啊? 比较a welcoming speech /a welcome speech make a speech是什么意思 make a speech speech中文是啥? “proven”是什么意思 演讲比赛 翻译：I hope you will enjoy the speech while giving a score.还有,是用speech还是class好 speech speech 请问address和speech之间的不同?同是名词的时候呢？ take a speech与give a speech的区别 made a speech的英语翻译 make a speech等于什么 How to give a speech? A Campaign Speech求翻译