2 sentences for 延期 (yán​qī — postpone)

1. 因为天气恶劣，开幕式不得不延期。

   yīn​wèi tiān​qì è​liè, kāi​mù​shì bù​dé​bù yán​qī.

   The opening ceremony had to be postponed due to bad weather.

   Source: Dong Chinese Dictionary

2. 关于是否应该延期，会议室里爆发了激烈的争论。

   guān​yú shì​fǒu yīng​gāi yán​qī, huì​yì​shì lǐ bào​fā le jī​liè de zhēng​lùn.

   A heated debate broke out in the conference room over whether to postpone.

   Source: Dong Chinese Dictionary