soapbark / ˈsoʊpˌbɑrk /

⚽高中词汇皂皮皂皮树肥皂树皂荚树

soapbark 的定义

n. 名词 noun
  1. a Chilean tree, Quillaja saponaria, of the rose family, having evergreen leaves and small, white flowers.
  2. the inner bark of this tree, used as a substitute for soap.