探险家：挺进最深洞穴 Explorer: The Deepest Cave

　　A team of elite cavers led by 68-year old Bill Stone attempts a months-long expedition to officially make Cheve Cave in Oaxaca, Mexico the world’s deepest cave. A massive logistical undertaking above ground supports the lead team in the depths as they navigate an underground maze of twisting tunnels and dead ends in search of a passage that leads to the bottom of deepest cave on earth高三的时刻，化学先生教咱们有机化学。先生先在黑板上画了一个“肽键”，而后对咱们说：“这是一个宦官，咱们给它安个甲基吧！同学们，你说要安在哪里呢？”这时候，台下曾经笑疯了。