应当地

They thought they should occupy their leisure more profitably.

得应当更好地利用空闲时间。

We should critically assimilate whatever is beneficial in literature and arts from other countries.

我应当批判地吸收别国文学艺术中一切有益的东西。

We should devote ourselves assiduously and faithfully to the duties of our profession.

我应当勤奋地且忠诚地献身于我的职责。

You should do justice to everyone.

你应当公平地对待所有的人。