英语词汇it is necessary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

英汉双解词典包含3607232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。

单词	it is necessary
释义	it is necessary
随便看	thermal stimulus remedy Thermal storage thermal storage capacity thermal storage device thermal storage effect thermal storage heater thermal storage heating stove thermal storage heating stove, electric thermal storage heating system thermal storage roof thermal storage system thermal storage tank thermal storage unit thermal storage wall thermal straightening thermal strain thermal strain analysis Thermal stratification thermal stratification model thermal stratified fluid thermal strength Thermal stress thermal stress analysis thermal stress crack thermal stresscracking