Jawaban:

A greeting is a polite expression of goodwill or a gesture of courtesy when meeting someone, while an apology is an expression of regret or remorse for having done something wrong or offensive. In my opinion, greetings and apologies are important forms of social interaction that help to establish and maintain positive relationships with others. Greetings help to create a friendly and welcoming atmosphere, while apologies help to acknowledge and repair any harm or hurt that may have been caused in a relationship.