1. In the natural world, metabiosis refers to the close association and mutual benefit between two different species.
自然界中的共生指的是两个不同物种之间的密切关联和相互受益。

2. The relationship between the clownfish and the sea anemone is a classic example of metabiosis.
小丑鱼和海葵之间的关系是共生的经典例子。