go round in circles
做徒劳无功的努力，没有实际进展或结果
口语·描述讨论或工作无进展
英文释义
To engage in repetitive or unproductive actions or discussions without making progress or reaching a resolution
例句
We've been discussing this issue for hours, but we're just going round in circles.
典故来源
源自物理运动，比喻像在圆圈中行走一样没有前进，强调重复无果。