来自compliment, 恭贺，道贺。现该词主要用于在基本服务基础上的免费升级，如免费升舱，免费早餐等。

1. He had complimentary tickets to take his wife to see the movie.

他有几张赠票，可以带妻子去看电影。

来自柯林斯例句

2. The staff have been very complimentary, and so have the customers.

员工们对此大加赞扬，顾客们也一样。

来自柯林斯例句

3. We often get complimentary remarks regarding the cleanliness of our patio.

我们经常听人称赞我们的露台非常干净。

来自柯林斯例句

4. complimentary tickets for the show

演出赠券

来自《权威词典》

5. She made some highly complimentary remarks about their school.

她对他们的学校给予高度的评价.

来自《简明英汉词典》