nonparasitic

例句：

1. 1. The disease is nonparasitic and can be easily treated.
   这种病是非寄生的，很容易治疗。
2. 2.The bacteria are nonparasitic and do not cause harm to the host organism.
   这些细菌是非寄生的，不会对宿主生物造成伤害。
3. 3.The parasites are nonparasitic and feed on the nutrients of their hosts.
   寄生虫是非寄生的，它们依赖宿主的营养生存。