n.下层；下（层林）木；下层植物

The understory of the rainforest is teeming with life, hosting numerous bird species, insects, and small mammals.
热带雨林的下层植被区生机勃勃，孕育了众多鸟类、昆虫及小型哺乳动物。
In the understory of deciduous forests, wildflowers bloom brightly during springtime, creating a colorful display.
在落叶林的下层林地中，春天时野花绚烂绽放，形成了一道亮丽的风景线。
Orchids often thrive in the understory of humid tropical regions, where they find the perfect balance of light and moisture.
兰花常在潮湿热带地区的下层林中茁壮成长，那里为它们提供了光与湿气的理想平衡。
Ecologists studying the understory vegetation noted an increase in plant diversity after a controlled burn restored nutrients to the soil.
生态学家研究下层植被时发现，经过控制性焚烧以恢复土壤养分后，植物多样性有所增加。
The thick understory of the forest provides essential cover for many ground-dwelling animals seeking protection from predators.
森林茂密的下层植被为许多地面生物提供了必要的掩护，使它们免受捕食者的威胁。
A walk through the understory reveals a complex ecosystem, with fungi decomposing fallen logs and recycling nutrients back into the soil.
穿行于下层林间，可以发现一个复杂的生态系统，真菌分解倒下的原木，将养分循环回土壤中。
The understory plants in temperate forests adapt to low light levels by growing broad leaves to capture as much sunlight as possible.
温带森林中的下层植物为了适应低光照条件，长出了宽大的叶子以尽可能多地捕捉阳光。
Many migratory birds rely on the food sources found in the understory during their long journeys between breeding and wintering grounds.
许多迁徙鸟在往返繁殖地和越冬地的长途旅行中，依赖下层林中的食物资源。
Researchers discovered a new species of frog living exclusively in the moist understory of a remote mountain range.
研究人员在一个偏远山脉湿润的下层林中发现了一种仅在那里生存的新蛙种。
The dense understory vegetation acts as a natural barrier, slowing down the spread of forest fires and protecting the taller trees above.
茂密的下层植被充当了自然屏障，减缓了森林火灾的蔓延速度，保护了上方较高的树木。