风味通常被认为是来自植物和细菌的副产品，或者说是天然分子之间发生的化学作用。
It usually means developing flavors from plant or bacteria by-products, or chemically treating naturally occurring molecules.
世卫组织建议使用含青蒿素副产品和另一种有效抗疟药物的联合化疗。 青蒿素是从青蒿植物中提炼出来的一种物质。
WHO recommends combinations that contain derivatives of artemisinin — a substance extracted from the plant Artemisia annua — along with another effective antimalarial drug.
大多数顺势疗法药物是从植物提取物，虽然有时也使用一些矿物质和动物副产品。
Most homeopathic medicine is made from plant extracts, although some minerals and animal byproducts are sometimes used.
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