例文・使い方で印象づける「stratification」の覚え方
スポンサーリンク...There is noclear stratification within the forest; in many parts of it there aredense growths of bushes, small trees, and palms... 
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
ランダム例文：
plus traditions defensive
便利！手書き漢字入力検索
この漢字は何でしょう？？