英语词汇arc second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	arc second
释义	arc second 【数】秒(角的度量单位)
随便看	earphone earphones earpick earpiece earpieces ear-piercing earplug earplugs Earp,Wyatt earreach earreaches earring earringed earrings ear rot ear rots ears ears' earset ear shell ear shells earshot earshots earsplitting earstone

英汉双解词典包含548777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。