欢乐

happy; joyful; merry; cheerful; jolly; gleeful; jovial; festive; delighted; joyous; gay; joyfully; happily; merrily; cheerfully; joy; happiness; merriment; gaiety; cheerfulness; delight; pleasure; fun; enjoyment; bliss; joviality; festivity; glee; mirth; sunshine; jollity; rejoice; delight in; revel in

介绍

introduce; present; recommend; brief; profile; unveil; introduction; presentation; referral; recommendation; intro; orientation; introductory; presentational