Math, science, history, unraveling the mysteries,数学 自然科学 历史 揭开神秘That all started with the big bang!一切由大爆炸开始＂Since the ... ever inward, we won't be here, it wont be hurt向内坍塌 反正我们不在了 不会觉得疼Our best and brightest figure that it'll make an even bigger bang...