看见岳母只能叫阿姨好看见岳父只能叫叔叔好
[kàn jiàn yuè mŭ zhĭ néng jiào ā yí hăo kàn jiàn yuè fù zhĭ néng jiào shū shū hăo]
In Chinese family etiquette, there are specific terms for relatives. The user here is expressing the cultural expectation to address their partner’s parents respectfully as aunt and uncle if marriage has not taken place yet.