Is it their unconditional love, their tireless desire to play?

是它们无条件的爱，还是不知疲倦的玩耍劲头？

Across our country, our law enforcement professionals are tireless.

全国各地的执法专家都全身心投入。

Work began immediately and was carried on with tireless tenacity.

工作立即开始，以十分坚持的顽强力气来进行。

Together, as Americans, we are a tireless force for justice and for peace.

各位，作为美国人，我们是正义与和平的不懈力量。

She had been a tireless advocate for Syrian refugees and other causes.

她是叙利亚难民和其他事业的坚定支持者。

Even before she boarded that bus, she was an activist; a tireless pursuer of justice.

甚至在她登上那辆公共汽车之前，她就是一名积极分子；不知疲倦地追求正义。

Thanks to the tireless efforts of all of us, our gains in controlling Covid-19 were continuously consolidated.

各方面持续努力，不断巩固防控成果。

However, with his sheer dedication and tireless effort, he cultivated a network of clients and longlasting partnerships.

然而，凭借他的奉献精神和不懈的努力，他培养了一个客户网络和长期的合作伙伴关系。

However, to the Abraham Lincoln's credit, it must be said that we struggled on with tireless persistence.

再说，我们是应该表扬林肯号的，它用不屈不挠的精神进行了这次恶斗。

Change occurred gradually through the tireless efforts of brave women and men fighting together for what is right.

改变是逐渐发生的，透过无数勇敢男、女不断地为正确的时共同奋斗。