胶木
杜仲树
In 1848, feather balls were replaced by gutta-percha balls made from the gum of a Malaysian tree.
WSJ: Collecting: Mementos of a Gentleman's Game | The Jaime Ortiz-Pati?o Collection
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。