They're pretty close to the ground, but these warblers also nest in forests that have low shrub density.
它们离地面很近，但是这些蓝莺也会在灌木密度低的森林里面筑巢。
2
Long - term heavy grazing simplified the alpine shrub community and decreased the standing above - ground biomass, especially palatable herbage plants.
长期重度放牧使高寒灌丛群落结构简化，地上现存生物量特别是优良牧草的现存量减少。
3
Henna comes from the leaves of a shrub, Lawsonia inermis, that have been dried, ground to a powder, and mixed with water.