客套话 (kè tào huà) - Polite Formulae

客套话 refers to polite phrases or formulaic expressions used to show respect and courtesy in conversation.

Example: 请多多关照 (Qǐng duōduō guānzhào) - Please take care of me (a humble request for kindness).

Fact: Polite formulae are so deeply ingrained in Chinese culture that they are used in both formal and casual settings to maintain harmony and show respect.

Source: Mandarin Inn