竭诚的英文：
wholeheartedly; with all one's heart

To entertain with utmost sincerity
竭诚款待

They served the clients wholeheartedly.
他们竭诚为顾客服务。

The Oriental Pearl offers warm-hearted service to people from all walks of life
东方明珠竭诚为各界人士服务!

Our consultancy center serves the people of all trades and professions whole-heartedly.
本咨询中心竭诚为各行各业人士服务。

We spare no effort to offer first-class service of import and export cargo transportation.
我们竭诚提供一流的进出口货物运输服务。

We place our best service,as heretofore,at your disposal.
任何时候，我们当一如既往听候贵方安排，竭诚尽力服务。

I sincerely hope you will introduce me to a famous multi-national company, to which I will dedicate myself.
希望贵公司能够为我介绍一下著名的跨国大公司，我将竭诚为该公司效力。

We afford you the opportunity to dine with delight, to sip in style, to relax in comfort.
我们将竭诚为您提供愉快进餐的良机，优雅的啜饮，舒适的休憩。

We place our best services, as heretofore, at your disposal.
任何时候，我们当一如继往听候贵方安排，竭诚尽力服务。

The Oriental is perfectly poised to introduce you to the legend.
东方大洒店竭诚恭候，引领您步入东方传奇。

As a Party member one must serve the people wholeheartedly
作为一个党员，应该全心全意为人民服务。

We'll support you wholeheartedly in your new experiment.
我们将会全心全意地支持您进行新的实验。

We are now devoting ourselves wholeheartedly to economic development.
现在我们一心一意地搞经济建设。

The policy of burn all,kill all,loot all
三光政策

It is all on the house.
费用全由敝店支付。

(all) in a twitter
(极度) 紧张[兴奋],激动

One, Taipei, one way.
台北单程票一张。

This one is not a spoof.
这个就不是开玩笑了。

One and one make(s) two.
一加一等于二。