他在报纸上刊登了一则启事。

tā zài bàozhǐ shàng kāndēngle yī zé qǐshì.

He published a notice in the newspaper.

这是一份寻人启事的通告。

zhè shì yīfèn xún rén qǐshì de tōnggào.

This is a notice for a missing person.

这份启事详细说明了事件经过。

zhè fèn qǐshì xiángxì shuōmíngle shìjiàn jīngguò.

This notice provides a detailed explanation of the events.