他在婚礼上致辞，表达了对新人的祝福。
tāzài hūnlǐ shàng zhìcí ， biǎodá le duì xīnrén de zhùfú 。
He made a speech at the wedding, expressing his blessings for the newlyweds.
在会议上，她致辞感谢所有参与的工作人员。
zài huìyì shàng ， tā zhìcí gǎnxiè suǒyǒu cānyù de gōngzuò rényuán 。
During the meeting, she addressed and thanked all the staff involved.
他在毕业典礼上致辞，鼓励同学们继续努力。
tāzài bìyè diǎnlǐ shàng zhìcí ， gǔlì tóngxué mén jìxù nǔlì 。
He gave a speech at the graduation ceremony, encouraging classmates to keep up the hard work.