Ehrlich's preparation

例句：

1. 1. The doctor prescribed a new medication for her.
   医生给她开了一种新的药物。
2. 2.The chemical was used as an indicator in Ehrlich's preparation.
   这种化学物质被用作艾利希氏制剂的指示剂。
3. 3. The patient was given Ehrlich's preparation to treat his condition.
   病人接受了艾利希氏制剂来治疗他的病情。