英语语法分析

There are three main types of symbiotic relationships: parasitism, commensalism, and mutualism.

共生关系主要有三种类型：寄生关系、共生关系和互惠关系。

These are not single individual plants; each one is a symbiotic combination of an alga and a fungus.

这些不是单个的植物；每一种都是藻类和真菌的共生组合。

A symbiotic relationship is an interaction between two or more species in which one species lives in or on another species.

共生关系是两个或多个物种之间的相互作用，其中一个物种生活在另一个物种体内，或依靠这一物种生活。