3 sentences for 接口 (jiē​kǒu — port)

1. 请把视频线接入显示器背后的接口。

   qǐng bǎ shì​pín​xiàn jiē​rù xiǎn​shì​qì bèi​hòu de jiē​kǒu.

   Please plug the video cable into the port on the back of the monitor.

   Source: Dong Chinese Dictionary

2. 这台笔记本电脑配有两个USB接口。

   zhè tái bǐ​jì​běn​diàn​nǎo pèi​yǒu liǎng gèUSB jiē​kǒu.

   This laptop comes with two USB ports.

   Source: Dong Chinese Dictionary

3. 维修工正在检查主水管和分管的接口。

   wéi​xiū gōng zhèng​zài jiǎn​chá zhǔ shuǐ​guǎn hé fēn​guǎn de jiē​kǒu.

   The repairman is checking the connections between the main water pipe and the branch pipes.

   Source: Dong Chinese Dictionary