说到容嬷嬷就能想到班主任
[shuō dào róng mā mā jiù néng xiăng dào bān zhŭ rèn]
This refers to the strict and fearsome image people remember about a head teacher ('banzhuren' in Chinese) similar to the character 'Mammy Rong' in the drama 'My Fair Princess'. It suggests an association with someone in authority at school who can be intimidating.