1, different font types. "He" is a traditional Chinese character, and "He" is a simplified Chinese character;
2, the use of different occasions. "Family fun" is often used in formal occasions, such as writing Spring Festival couplets. "Family happiness" is mostly used in informal occasions, such as general communication;
3. Different word translations. "Close" means: full, door leaves, covering walls and closing grass curtains, and "close" means: full, total * * *, closed, door leaves, etc.
References:
Baidu encyclopedia-happy family