“付出不一定有回报”常见的英语表达有：“Efforts do not necessarily lead to rewards.” 或者 “Paying out doesn't necessarily mean getting returns.” 或者 “Making efforts doesn't necessarily result in rewards.”
在这些表达中：
“efforts”意思是“努力；付出”，“necessarily”表示“一定；必然地”，“lead to”和“result in”都有“导致；造成”的意思，“rewards”和“returns”都可指“回报；报答”。
例如：In many ca s, efforts do not necessarily lead to rewards, but we still should keep working hard.（在很多情况下，付出不一定有回报，但我们仍然应该继续努力。）
“Paying out”侧重于“付出、支出”的动作。如：Paying out doesn't necessarily mean getting returns. It's a reality we have to accept.（付出不一定意味着得到回报。这是我们必须接受的现实。）
这些表达都能够准确传达“付出不一定有回报”的意思。
