置之不问

Explanation: Aside, not to interfere. Qing Yuan Mei, "a new harmonic Sedan Chair Lang Jun Qi": "is in the closed Shushe, but soon escaped, but also carry human Sedan Chair. If found again, no how his grandfather, _set_ the do not ask." Ba Jin "Autumn" a : "Cheng has no means buried, Uncle also _set_ the do not ask."