生物学
延龄草
延年草
Born in 1908, Ruth Petersson Bancroft, the daughter of a UC Berkeley classics professor, would wander the open fields behind her family's Berkeley home to collect trilliums and other wildflowers.
WSJ: Ruth Bancroft, Growing a Piece of History
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。