说到容嬷嬷就想到班主任
[shuō dào róng mā mā jiù xiăng dào bān zhŭ rèn]
The user compares a strict and sometimes stern figure in life (such as a homeroom teacher) to a similarly portrayed character named Rong Muma from the popular historical drama “My Fair Princess.” The implication here is about an authority who may be intimidating or strict, yet perhaps not as malevolent.