For example, it can promote root development in cuttings, stimulate fruit development in the absence of fertilization or, in excess, kill weeds.

比如，在切削部位可以促进根的生长，不受粉的情况下刺激水果发育，过量可以除草。

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The root helps to stimulate the flow of bile from the liver and as bile is nature's laxative, it eases constipation and helps the liver detoxify.

它的根能促进肝脏所分泌胆汁的流动，而胆汁是天然的泻药，能缓解便秘并有助于肝脏的解毒功能。

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Symbiotic nitrogen-fixing bacteria invade the root hairs of host plants, where they multiply and stimulate the formation of root nodules, enlargements of plant cells and bacteria in close association.

共生的固氮菌侵袭宿主植物的根毛，并在此繁殖和促进根瘤的形成、植物细胞和亲密共生细菌的扩大。

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