trouper
noun [ C ] uk/ˈtruː.pər/ us/ˈtruː.pɚ/
有经验的演员，老演员
a successful entertainer who has had a lot of experience
approving任劳任怨的人;可靠的人
anyone with a lot of experience who can be depended on and does not complain
Thanks for being such a trouper, and helping out all evening. 多谢你这么任劳任怨，整晚一直在帮忙。
He took his disappointment like a trouper. 他虽有些沮丧，但不抱怨。