英语词汇has been in effect since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 in effect since
释义	be in effect — 现行 in effect — 有效 • 实际上 adv has-been — 过气
随便看	separation of family separation of forces separation of functions separation of incompatible separation of information separation of isotopes separation of liquids separation of materials separation of offices separation of ownership separation of particles separation of placenta separation of powers separation of powers for checks and balances separation of property separation of proteins separation of religion and State separation of research separation of responsibilities separation of roles separation of roles between separation of staff separation of tasks separation of the judiciary separation of water

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。

be in effect —