“工人运动”常见的英文表达是 “workers' movement” 或 “labor movement”(在美式英语中更常用 “labor”,英式英语中则常用 “labour” ,所以 “labour movement” 也可行,二者意思一致)。
例句:
The workers' movement played a crucial role in the history of labor rights. (工人运动在劳工权利的历史上发挥了至关重要的作用。)
The labor movement has been fighting for better working conditions for decades. (几十年来,工人运动一直在为改善工作条件而奋斗。)