run back and forth in vain
In Chinese, the Pinyin is w ǎ NGF ǎ NT ú L á o, which means running back and forth in vain. From the romance of Fengshen.
Idiom explanation
Futility: no effort.
The origin of Idioms
The 56th chapter of the romance of the gods written by Xu Zhonglin of Ming Dynasty: "when the doctor sees the instructions today, the public will say it, and the private will say it in private. There is no need to use the tongue, the sword and the spear in vain."
run back and forth in vain
doubts and suspicions cannot be cleared up - yí tuán mò shì