欢快

lively; cheerful; joyful; cheery; bright; genial; merry; blithe; jolly; jaunty; perky; sprightly; upbeat; cheerfully; joyfully; merrily; blithely; lightheartedly; gaily; cheer; cheerfulness; lilt

男女

men and women; males and females; boys and girls; son and daughter; gender; the sexes

唱歌

sing; chant; carol; vocalize; sing a song; vocal; singing; song; vocalization