poisonous dose

例句：

1. 1.The poisonous dose of the drug was too high for the patient to tolerate.
   这种药物的有毒剂量对病人来说太高了，无法承受。
2. 2. The doctor gave him a lethal dose of medication to save his life.
   医生给他开了致命的剂量的药物来救他的命。
3. 3.The scientist conducted an experiment to determine the toxic dose of the chemical.
   科学家进行了一个实验来确定这种化学物质的有毒剂量。