英语词汇unprecedented problems怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	unprecedented problems
释义	unprecedented — 未有 • 前所未有 • 空前 • 前所未有的 • 破天荒 • 前所未闻 • 亘古未有 • 旷古未有 • 旷古未闻 problems pl — 问题 n • 困难 pl unprecedented [idiom.]— 前不见古人，后不见来者 unprecedented adj — 未见 adj problem n — 难 n • 课题 n • 难度 n • 疙瘩 n • 难处 n • 周折 n • 烫手山芋 n
随便看	concrete proof concrete proposal concrete prospect concrete protection concrete provision concrete pump concrete pumping concrete quality concrete question concrete raft concrete realization concrete reclaimer concrete recommendations concrete record concrete reduction measures concrete rehabilitation concrete reinforcement concrete reinforcing concrete reinforcing steel concrete release concrete relief concrete renovation concrete repair concrete repair products concrete reply

英汉双解词典包含2273206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。

unprecedented —