microdosage

例句：

1. 1. The doctor prescribed a microdose of medication for her condition.
   医生给她开了微量的药物治疗。
2. 2. The patient was given a microdose of medication to help with his pain.
   病人被给了一小剂量的药物来帮助缓解他的疼痛。
3. 3.The study found that microdoses of certain drugs can have significant therapeutic effects.
   研究发现，某些药物的微量给药可以产生显著的治疗效应。