本职

mǒu rén běn zhí yè wù

某人本职业务

one's own field of endeavour

zuò hǎo běn zhí de gōng zuò

做好本职的工作

do one's own job well

zài běn zhí gōng zuò zhōng zuò chū de fā míng chuàng zào

在本职工作中作出的发明创造

in the course of performing his own duty

tā yī zhí zhuān xīn zhì zhì yú tā de běn zhí gōng zuò

他一直专心致志于他的本职工作。

He has been concentrating on his own career.