symmictite

例句：

1. 1. The symbiotic relationship between humans and bacteria has been studied for decades.
   人类和细菌之间的共生关系已经研究了几十年。
2. 2. In the symbiotic ecosystem, different species coexist in a mutually beneficial relationship.
   在共生生态系统中，不同的物种以互利的方式共存。
3. 3. The discovery of symbiotic organisms has led to new insights into the evolution of life on Earth.
   发现共生生物的发现，为地球上生命进化的新见解提供了依据。