toxon

例句：

1. 1.The poisonous snake bit him on the leg.
   这条有毒的蛇咬了他的腿。
2. 2.The doctor prescribed a toxin to treat his cancer.
   医生开了一种毒素来治疗他的癌症。
3. 3. The toxin in the medicine caused her to become ill.
   这种药物中的毒素使她生病了。