are essential翻译

are essential的基本解释

读音: 美: 英:

是必要的：表示某事物是非常重要或必不可少的。

例句

Elections are essential for the sustenance of parliamentary democracy.选举制度是维持议会民主所必不可少的。《牛津词典》
Why sight words are essential?常用字为什么重要？
Regulations such as minimum operating age, restricted operating areas and compulsory classes in water safety are essential.诸如最低操作年龄、限制操作区域和水上安全必修课等规定是必不可少的。

短语

Both are essential 两者都是不可或缺的
What are essential medicines 什么是基本药物
WHICH are essential FATTY ACIDS 这是必需脂肪酸 ; 哪些是必需脂肪酸
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