毒蛇，指能够分泌毒液的蛇。毒蛇一般体形不大，头呈三角形状，有毒牙。毒蛇的毒液一般储藏在毒牙中，在捕捉猎物或者自卫的时候通过毒牙喷出毒液，或者是咬住攻击对象之后再把毒液通过毒牙注射到攻击对象的体内。当毒液进入人体血管之后，毒液会通过血液循环流遍全身，从而使局部乃至全身分别引起不同的中毒症状，若不及时处理甚至可能会丧命。下面将详细介绍常见的毒蛇和被毒蛇咬伤之后的处理方法。
抗蛇毒血清是用来给被毒蛇咬伤的人注射的。
Anti-venin is what they give people after they have been bitten by a poisonous snake.
“小马云”的父亲范佳发（音）年轻时由于被毒蛇咬伤，截去了右腿。
Fan Jiafa, the father of "mini Jack Ma, " had his right leg amputated as a young man after being bitten by a viper.
好吧，根据我们的研究所知，任何事情都可能发生，包括被毒蛇咬伤，到因热气球坠毁而奄奄一息。
Well, according to our research, anything from being bitten by a poisonous snake to dying in a hot-air balloon crash can happen.
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