professionals是什么意思

Professional means relating to a person's work, especially work that requires special training.

Professional people have jobs that require advanced education or training.

You use professional to describe people who do a particular thing to earn money rather than as a hobby.

Professional sports are played for money rather than as a hobby.

If you say that something that someone does or produces is professional, you approve of it because you think that it is of a very high standard.