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	Definition of principal focus in English: principal focus noun Optics The focus of rays that strike a lens or spherical mirror parallel to its axis. Origin Late 17th century; earliest use found in Isaac Newton (1642–1727), natural philosopher and mathematician. Definition of principal focus in US English: principal focus noun Optics The focus of rays that strike a lens or spherical mirror parallel to its axis. Origin Late 17th century; earliest use found in Isaac Newton (1642–1727), natural philosopher and mathematician.
随便看	Bettendorf better better better better betterance better dead than red better dead than red (or better red than dead) better dead than red (or better red than dead) bettered betterer better feelings better half better-heeled better-informed bettering bettering house betterish better late than never better late than never better-looking betterment betterments bettermost better nature

　

英汉双解词典包含464360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。

　

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更新时间：2024/9/21 13:39:05