| 单词 | be incumbent on/upon sb |
| 释义 | be incumbent on/upon sb be incumbent on/upon sb FORMAL► F0 to be necessary for someone: » She felt it incumbent upon/on her to raise the subject at their meeting.Thesaurus+: ↑Essential or necessaryMain Entry: ↑incumbent |
| 随便看 |
英语词典包含67674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。