species compositions的用法和樣例：
例句
- The species composition and characteristics of mangrove flora in the world were reviewed and discussed.
探討了世界紅樹(shù)林植物區系的種類(lèi)組成及其特點(diǎn)。 - Temperate forests consist mainly of broad-leaved, deciduous species and the complex layered structure of the vegetation leads to high primary production.
溫帶森林主要由闊葉落葉種類(lèi)組成，植被復雜的層次結構導致很高的初級生產(chǎn)力。
