山(shān )洞的入口和(hé )出口不同(tóng ),是单向(xiàng )的,入口处是有传送(sòng )机关,出(chū )口(kǒu )只(zhī )有一层能量(liàng )屏障。从山(shān )洞里面能轻易穿过屏(píng )障出去,但是从(cóng )外面要通过屏障进去,却很困难。但这(zhè )对江陵来说不(bú )是个问题,他把(bǎ )出神(shén )入(rù )化丹拿(ná )出(chū )来一口(kǒu )吞下。顷刻(kè )间,药力化开,他只感觉浑(hún )身轻飘飘地,其他就没什么了。江陵试着用手(shǒu )触碰出口处的屏障,果然,