lethal dosage 50％

例句：

1. 1.The drug has a lethal dosage of 2mg per tablet.
   这种药物每片含有致命的剂量，即2毫克。
2. 2. The scientist conducted an experiment to determine the lethal dosage of the poison.
   科学家进行了一项实验，以确定这种毒药的致命剂量。
3. 3. The patient received a lethal dosage of medication and was rushed to the hospital.
   患者接受了致命的剂量的药物治疗，并被紧急送往医院。