themes

1.

主題

the subject of a talk, a piece of writing, a person's thoughts, or an exhibition; a topic.

:
the theme of the sermon was reverence
2.

主題

an idea that recurs in or pervades a work of art or literature.

:
love and honor are the pivotal themes of the Hornblower books
1.

主題

give a particular setting or ambience to (a venue or activity).

:
the amusement park will be themed as a Caribbean pirate stronghold