要不然: otherwise, or else, or...
寒冷: cold (climate), frigid, very cold...
青春: youth, youthfulness...
发誓: to vow, to pledge, to swear...
地步: stage, degree (to which a situation has evolved), situation, leeway...
徐徐: slowly, gently...
空虚: hollow, emptiness, meaningless...
书法: calligraphy, handwriting, penmanship...
蜂蜜: honey...
概念: concept, idea...