轻松

relaxed; light; unworried; effortless; comfortable; undemanding; laid-back; relax; lighten; ease; unwind; take it easy; lighten up; easy; easily; lightly; comfortably; relief; free and easy

欢快

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

歌曲

song; track; melody