He goes through them as a matter of duty, and forgets about them as a matter of course.

他象履行义务似的穿过深宅大院，又极其自然地将它们忘得一干二净。

youdao

People now-a-days call on each other on business, or as a matter of social duty, but not to foregather by way of mujlis.

现今的现今的人们因为有事或者是当作社交义务相互走访，但不是通过mujlis那种不请自到的方式聚会在一起。

youdao

He took his duty as a matter of course.

他把自己的责任视为当然的事。

youdao

The idea of an act of kindness as an end in itself or as a matter of personal duty was simply not part of their moral horizon.

FORBES: The Tenth Golden Rule on Living the Good Life