We guarantee (an) excellent service.

我们保证提供优质服务。

《牛津词典》

Add to this the excellent service and you can see why it's the most popular hotel on the island.

这再加上优质服务，你就能明白为何这家旅馆在岛上最受欢迎。

《牛津词典》

Come in and try our delicious meals and our excellent service.

请进来尝尝我们的美味佳肴，感受我们的优质服务。

youdao

In nineteen fifty, Mayer received a special Academy Award for "excellent service to the Motion Picture industry."

VOA: special.2009.05.31

Opulent setting, attentive service and excellent eatables keep Parioli Romanissimo's stars burning bright.

FORBES: Fact and Comment

The service was excellent, as it was everywhere in the hotel.

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Those who make it a practice to leave extra large tips to a restaurant server may be naturally generous, or perhaps just thought the service was excellent.

FORBES: Magazine Article