3 sentences for 大典 (dà​diǎn — ceremony)

1. 全国人民热烈庆祝开国大典。

   quán guó rén​mín rè​liè qìng​zhù kāi​guó dà​diǎn.

   The people of the whole country warmly celebrated the founding ceremony of the PRC.

   Source: Dong Chinese Dictionary

2. 他们在礼堂举行了开学大典。

   tā​men zài lǐ​táng jǔ​xíng le kāi​xué dà​diǎn.

   They held a grand opening ceremony in the auditorium.

   Source: Dong Chinese Dictionary

3. 新登基的国王今天举行了即位大典。

   xīn dēng​jī de guó​wáng jīn​tiān jǔ​xíng le jí wèi dà​diǎn.

   The newly enthroned king held his coronation ceremony today.

   Source: Dong Chinese Dictionary