systox

例句：

1. 1.The poisonous snake bit him on the leg.
   那条有毒的蛇咬了他的腿。
2. 2.The toxin in the venomous snake caused severe allergic reactions.
   这种毒蛇分泌的毒素引起了严重的过敏反应。
3. 3.Symptoms of arsenic poisoning include nausea and vomiting.
   砷中毒的症状包括恶心和呕吐。