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1·Though seldom encountered, the bushmaster is potentially lethal.

虽然不常遇见，巨蝮却是带有致命毒液的危险动物。

2·A bite from a bushmaster has an 80 % fatality rate, even with anti - venom.

被巨蝮咬了的人80%会死，即使有抗毒血清。