When to add it after the live broadcast and when not to add it, be detailed.

1. Take animals as an example, "living" means "animal life" without objects; Live is an intransitive verb. You cannot add objects directly. You must add a preposition. )

"Live in" means "where animals live", followed by an object. (live in is the attribute of the place, which constitutes the verb-object relationship; )

Example comparison:

Zoo is a terrible place for animals to live. The zoo is a terrible place for animals.

A place suitable for animals to live.

This usually appears in attributive clauses. Where there is a place adverb to guide (guide), you don't need to add it, otherwise you should add it. For example, the city where I live is very quiet. /The city where I live is very quiet.