pincer
[名词]
any of the sharp curved organs of an arthropod or insect, such as a crab, lobster, etc.

钳子, 螯
exoskeleton
[名词]
the hard outer covering that supports the body of an animal, such as an arthropod

外骨骼, 硬外壳
venom
[名词]
the poisonous substance produced by some snakes, scorpions, or spiders to kill their prey or to defend themselves from predators

毒液, 毒素

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