?密封性
密封性
密封结构
Even for such a hermitical figure as Thoreau, idea work was not a solitary activity.
FORBES: Thoreau's Idea Hunt, and Ours
hermitical:
From hermitic +? -al.
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。