id est造句

• On the other hand , the sites with no stone , id est pure grass and pure shrubbery , had no distribution of cathaica cavimargo . only a single empty shell was found on the site of pure grass
  分布有石灰石或花岗石的样地种群密度最大，无石头分布的纯草地和纯灌木没有cathaicacavimargo分布，纯草地只见到一枚空壳。