1854J. Wilson Let. in Mem. (1859) 304 Whatever was not altogether imperative and un⁓postponable.
1890Gunter Miss Nobody xvii, Important and unpostponable business.
英语词典包含277258条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。