outgrowths的音标：...

n.自然结果，副产物，生长物( outgrowth的名词复数 )...

Trichomes are unicellular or pluricellular outgrowths from the epidermis of leaves, shoots, and roots.毛状体是叶片 、 枝条和根的皮层的单细胞或多细胞的外生物....