First, refer to different
1, live on (a source of income).
2. Live: Live where you study or work.
Second, the emphasis is different.
1, Live: Focus on making a living.
2, live in: focus on the position of life.
Third, the use of quotations is different.
1, live: the basic meaning of living is "live, live", which can be extended to "live, live in some way", "continue to exist" and "enjoy life".
2.live in:live can be used as a transitive verb or an intransitive verb. When used as a transitive verb, it is usually followed by a cognate object, and sometimes followed by a word different from the verb, such as experience, which means "living the life of …, having the practice or experience of …"