英语词汇has been cooperating since 1999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	has been cooperating since 1999
释义	since prep — 自 prep • 打 prep since — 因为 adv • 兹因 since conj — 既 conj • 既然 conj • 既是 conj has-been — 过气
随便看	gasified coal gasifier gasifier system gas incidents gas industry gas industry's gas industry's gas industry's gas infrastructure gasing gas inhalation gas injected gas injection gas injection molding gas injection moulding gas injection process gas injection technology gas injection unit gas injector gas inlet gas inlet and outlet gas inlet pipe gas inlet system gas inlet temperature gas inlet tube

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。

since prep —