英语词汇at 2500 ecs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	at 2500 ecs
释义	at prep — 于 prep • 对 adv • 乎 prep
随便看	your package was despatched your paper your parcel your pardon your parents your parents and i your parents were your part your participation your particular your particular application your particular business your particular circumstances your particular need your particular requirements your particular situation your partner your partner for your partnership your passion your passion for your passport your password your password is changed your password is wrong

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。

at prep —