3 sentences

1. 他向所有到场嘉宾致辞并致谢。

   tā xiàng suǒ​yǒu dào​chǎng jiā​bīn zhì​cí bìng zhì​xiè.

   He gave a speech and thanked all the guests present.

   Source: Dong Chinese Dictionary

2. 表演结束后，演员们向观众集体鞠躬致谢。

   biǎo​yǎn jié​shù hòu, yǎn​yuán men xiàng guān​zhòng jí​tǐ jū​gōng zhì​xiè.

   After the performance, the actors bowed together to thank the audience.

   Source: Dong Chinese Dictionary

3. 作者在论文的致谢部分提到了他的导师。

   zuò​zhě zài lùn​wén de zhì​xiè bù​fen tí​dào le tā de dǎo​shī.

   The author mentioned his supervisor in the acknowledgments section of the thesis.

   Source: Dong Chinese Dictionary