樂在其中

Happy; cheerful; to laugh; enjoyment; pleasure; music; a surname; used in place names.

To exist; to be located at or in a place; to be in the process of doing something; to depend on; to observe.

Pronoun: his; her; its; their; that; such; it; function word: used at end of sentence to indicate doubt; used in middle or end of sentence after 彼 or 何.

Center; middle; within; among; during; China; Chinese; to hit a target; to win.