英语词汇principal focus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 focus
释义	principal focus 【物理学】主焦点[亦作 focal point]
随便看	glug Glugea glugged glugger glugging glugs gluier gluiest gluily gluing gluings gluino gluinos glulam glulams glum glumaceous glume glume blotch glumed glumelike glumes glumly glummer glummest

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。