guān xi
正确处理科学技术普及和提高的关系
Zhèngquè chǔlǐ kēxué jìshù pǔjí hé tígāo de guānxì.
Properly handle the relationship between popularization and advancement of science and technology.
这个电门跟那盏灯没有关系。
Zhège diànmén gēn nà zhǎn dēng méiyǒu guānxi.
This switch has nothing to do with that lamp.
拉关系
lā guānxi
To pull strings / to seek connections / to network