1 sentence

1. 如果会议时间还要往后延，请提前通知我。

   rú​guǒ huì​yì shí​jiān hái yào wǎng hòu yán, qǐng tí​qián tōng​zhī wǒ.

   If the meeting time is to be delayed further, please notify me in advance.

   Source: Dong Chinese Dictionary