供职

wǒ zài hǎi guān gòng zhí le sān shí nián

我在海关供职了三十年。

I have held office in the Customs for 30 years.

gòng zhí rén yuán

供职人员

personnel in office

tā zài zhèng fǔ bù mén gòng zhí

他在政府部门供职。

He works at a government department.

tā zài kè yùn jú gòng zhí

她在客运局供职。

She sits on the passenger transport authority.