main; most important 主要的；最重要的◆Their primary business is life insurance. 他们的主要业务是人寿保险。◆Our primary target is 20- to 35- year-olds. 我们的主要目标是 20 岁－ 35 岁的人。SYNprime
used to describe sth that is not caused by or based on sth else 最初的；原始的◆the use of primary source materials 第一手材料的使用
() relating to shares, bonds, etc. that are being sold for the first time 初级的，一级的（有关初次出售的股票、债券等）◆The primary bond market came back to life on Tuesday after a very quiet month. 初级债券市场在沉寂了一个月之後於星期二又恢复了生气。