办事

It's very difficult to have him do you a favour.

Many hands make light work.

highly efficient administrative system

follow one's conscience in doing things

run affairs in accordance with the specific conditions

act according to the policies of the country

be conscientious in one's work

dispatch one's business with skill/dexterity

do one's job squarely

be fair and just; play the game

not do one's best in one's work

do practical things