英语词汇extra difficulty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	extra difficulty
释义	extra — 余 • 外加 • 零 difficulty n — 难 n • 难关 n • 难处 n • 难易 n • 难点 n • 颠沛 n • 艰巨性 n • 饥荒 n extra adj — 额外的 adj
随便看	isolation resistance isolation room isolation service isolation shutter isolation strip isolation switch isolation system isolation techniques isolation test isolation testing isolation test voltage isolation Transfer isolation transformer isolation tube isolation unit isolation valve isolation vis-à-vis isolation voltage isolation wards isolation, which isolation, which isolation, which isolator isolator block isolator box

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。

extra —