3 sentences for 延迟 (yán​chí — lag)

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