The group fulfilled their duties assiduously.

小组勤勉地完成了他们的任务。

After working assiduously for two whole hours.

辛辛苦苦地干了两个小时。

Playing the game too assiduously can have a cost too.

但是，一个劲儿地玩这个游戏也可能会付出代价。

His campaign team have assiduously courted the media.

他的竞选班子孜孜不倦地讨好媒体。

He cultivates backbench MPs and activists assiduously.

他不辞辛劳地培养下院议员和其他活动分子。