3. Physical therapist

Physical therapists:Social interaction and helping people apparently make this job one of the happiest.

理疗师：社会互动和帮助他人明显使得这份工作是最幸福的工作之一。

4. Author

Authors:For most authors, the pay is ridiculously low or non-existent, but the autonomy of writing down the contents of your own mind apparently leads to happiness.

对于大多数作家来说，他们的报酬少得可怜，或者根本没有，但是写下自己心中所想的自由显然会带来幸福。