英语词汇principal points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	principal points
释义	principal point 【光学】主点
随便看	soulster soulsters soul-stirring Soult, Nicolas Jean de Dieu souma sou markee sou marque sound soundable sound absorption sound a false note sound-alike sound-alikes sound analyzer sound-and-flash ranging sound and light sound-and-light sound-and-light show sound a note of warning against something sound a note of warning something sound a parley sound archive sound a retreat sound arrester sound as a bell

英汉双解词典包含483723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。