6 sentences

1. 有3秒钟的延迟。

   yǒu3 miǎo​zhōng de yán​chí.

   There's a three-second delay.

   Source: OpenSubtitles

2. 网络延迟太高，视频通话一直卡顿。

   Wǎng​luò yán​chí tài gāo, shì​pín tōng​huà yī​zhí kǎ​dùn.

   The network latency is too high, and the video call keeps lagging.

   Source: Dong Chinese Dictionary

3. 网络联通非常顺畅，没有任何延迟。

   Wǎng​luò lián​tōng fēi​cháng shùn​chàng, méi​yǒu rèn​hé yán​chí.

   The network connection is very smooth, without any lag.

   Source: Dong Chinese Dictionary

4. 酒店将对延迟退房收取额外费用。

   jiǔ​diàn jiāng duì yán​chí tuì fáng shōu​qǔ é​wài fèi​yòng.

   The hotel will charge an additional fee for late check-outs.

   Source: Dong Chinese Dictionary

5. 由于发生了技术故障，火车的发车时间不得不延迟。

   yóu​yú fā​shēng le jì​shù gù​zhàng, huǒ​chē de fā​chē shí​jiān bù​dé​bù yán​chí.

   The train's departure time had to be delayed due to a technical failure.

   Source: Dong Chinese Dictionary

6. 飞机由于天气原因延迟了，我们要很晚才能到北京。

   fēi​jī yóu​yú tiān​qì yuán​yīn yán​chí le, wǒ​men yào hěn wǎn cái néng dào Běi​jīng.

   The flight was delayed due to the weather, so we will arrive in Beijing very late.

   Source: Dong Chinese Dictionary