Trained medical workers provide some scientific medical care. But many people have to rely on such practice as the use of plant medicines or even treatment by witch doctors.

受到训练的医务工作者，提供一些科学医疗服务，但很多人不得不靠草药或者巫医治疗。

youdao

Herbal medicines include herbs, herbal materials, herbal preparations, and finished herbal products that contain parts of plants or other plant materials as active ingredients.

草药包括药草、草药材、草药制剂和草药成品，包含作为有效成分的植物部分或其它植物材料。

youdao

They intend to screen the content and quality of natural plant products used as medicines.

ECONOMIST: Taxonomy

The project, which includes researchers at the University of Liverpool and plant breeders, bio-medical groups and manufacturers of garlic-based medicines from mainland Europe, will also examine whether garlic preparations are as effective as the raw, unprocessed product.

BBC: Researchers target garlic mystery