英语词汇has previously been observed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 previously been observed
释义	previously — 曾 • 先前 • 以前 adv • 之前 • 此前 • 曾经 • 以往 adv • 其先 • 早前 • 在此之前 • 前来 • 从前 • 早先 • 先头 has-been — 过气
随便看	satin satin appearance satin black satin brass satin brushed satin brushed aluminium satin-brushing satin chrome satin chrome plated satin cloth satin cover satin dress satin feel. satin finish satin finished steel satin-finish glass satin finishing sat in front of the computer sating satin glass satin gloss satin gown satin leather satin lining satin metal

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。

previously —