在雅思口语中，"相对来说"可以用英文表达为 "comparatively"。例如，如果你想表达某人的工资在某个国家相对较高，你可以说：

"Comparatively speaking, his salary is very high in our country."

或者

"His salary is comparatively very high in our country."

希望这能帮助你，