Complex sentence: Sometimes parents may pour a cup of tea for their children to show their care, or a boss may even pour tea for subordinates at restaurants to promote their relationship; however, in formal occasions, this rule has remained unchanged.
Split into simpler sentences: Sometimes parents may pour a cup of tea for their children to show their care, or a boss may even pour tea for subordinates at restaurants to promote their relationship. However, in formal occasions, this rule has remained unchanged.