它产生粘稠的黏液并在黏液上爬行消耗了大量的能量，而一只老鼠移动同样的距离只消耗了十二分之一的能量。
It uses so much energy producing the slimy mucus and crawling over it that a mouse traveling the same distance uses only one twelfth as much energy.
这里满是蜘蛛、蝙蝠、青蛙、老鼠、恶心的虫子和其它一下爬行的昆虫。
It was full of spiders, bats, frogs, damn rats, offensive bugs and other crawling insects.
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