英语词汇system is valid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	system is valid
释义	valid — 有效 • 作数 valid adj — 效的 adj system n — 制 n • 体 n • 制度 n • 体制 n • 制式 n • 装置 n • 条贯 n be v — 有 v • 是 v • 当 v • 存在 v • 做 v • 乃 v • 属 v • 成为 v • 乃是 v
随便看	have undertaken have undertaken a course have undertaken studies have underwent have undoubtedly become have unfortunately have unfounded doubts have unique have unique experience in have universal appeal have unleashed have unlimited liability have unlimited rights have unlocked have unparalleled experience have unraveled have unrealistic expectations have until have until now have until now been have unveiled have up close have updated have up its sleeve have ups and downs

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。

valid —