And I don't know whether they actually saw crab in it, or imagined that one might be, but whatever the case, they would leap off the bottom and go through the water and land right on top of this coral head, and then the web between the arms would completely engulf the coral head, and they would fish out, swim for crabs.
我不知道它们是否看到了一只藏匿其中的螃蟹，或者是猜测到其中可能有一只， 但是无论如何，它们会浮起来 顺着水流稳稳地停在那块珊瑚礁上面， 接着触须之间的网状物 会完全包裹住这块珊瑚礁， 然后摸索出里面的螃蟹。