The Australian Box Jellyfish的意思|示意

澳大利亚箱形水母 The Australian box jellyfish, or sea wasp, is most likely to succeed…in killing you. It has up to 15 tentacles, each packing enough poison to slay dozens of unlucky bathers. These jellies are almost transparent: the best way to spot them is to look for their shadows on the ocean floor. Their toxins work so quickly that a victim's heart can stop before he even reaches the shore. Survivors are left with horrific-looking welts on their skin.