1890, "actor or performer in a troupe," from troupe (n.) + -er (1). Transferred sense of "reliable, uncomplaining person" [OED] is attested by 1942, American English.
雙語例句
1. Like the old trouper he is, he timed his entry to perfection.
作為一名老戲骨,他上場的時間把握得恰到好處。
來自柯林斯例句
2. For this old trouper there is still no business like show business.