应当地

They thought they should occupy their leisure more profitably.

他们觉得应当更好利用空闲时间。

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

我们应当勤奋而且忠身于我们的职责。

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

我们应当批判吸收别文学艺术中一切有益的东西。

You should do justice to everyone.

你应当公平所有的人。