primary [ˈpraɪməri]

以下由轻松背单词网站提供

n.最主要者；adj.主要的，初期的，根本的

more important than anything else ; main

How long have you studied in primary school? 你们在小学学习多长时间？
The primary reason for advertising is to sell more goods. 做广告的根本目的是要多出售货物。