We learn of complex water habitats and a fragile ecosystem of flora and fauna.

导游向我们介绍，这片水域生境的植物和动物生态系统复杂而脆弱。

youdao

Surroundings in which an organization operates, including air, water, land, natural resources, flora, fauna, humans, and their interrelation.

组织作业所在的周边环境，包括空气、水、土地、自然资源、植物、动物、人类，以及其间的互动关系。

youdao

All plants [flora] need water and light.

一切草木都需要水和阳光。

youdao