4 sentences

1. 如果天气不好，活动将延期。

   rú​guǒ tiān​qì bù​hǎo, huó​dòng jiāng yán​qī.

   If the weather is bad, the event will be postponed.

   Source: CCMatrix

2. 他们的旅行因为下雨延期了。

   tā​men de lǚ​xíng yīn​wèi xià yǔ yán​qī le.

   Their trip was postponed because of the rain.

   Source: Tatoeba

3. 你为什么突然想把手术延期到明天？

   nǐ wèi​shén​me tū​rán xiǎng bǎ shǒu​shù yán​qī dào míng​tiān?

   Why do you suddenly want to postpone the surgery to tomorrow?

   Source: OpenSubtitles

4. 如果我必须取消或延期我的旅行怎么办？

   rú​guǒ wǒ bì​xū qǔ​xiāo huò yán​qī wǒ​de lǚ​xíng zěn​me​bàn?

   What if I have to cancel or postpone my trip?

   Source: CCMatrix