primary
单词辨析：
强调基本的、简单的，或指事物处于初级阶段的，通常作定语。
The lawyer was ignorant of even the most elementary facts.
那位律师连最基本的事实都不知道。
It might be better to send them to a private elementary school.
送他们到私立小学或许比较好。
Here it refers to elementary education, starting with simple reading and basic skills.
这里指的是从简单阅读和基本技能开始的基础教育。
指作为事物的基础或本质的，通常作定语。
elemental features/forces
基本特征/自然力
Love and hatred are two of the most elemental human emotions.
爱和恨是人类最基本的两种情感。
指反映事物本质的，强调重要性。
In all cases, the fundamental principles remain the same.
在任何情况下，基本原理保持不变。
There are fundamental differences between your political beliefs and mine.
你我的政治信仰根本不同。
指在重要性方面占据首位的，通常作定语。
Our primary concern must be the children.
我们首先要关心的必须是儿童。
Good health care is of primary importance.
良好的医疗保健是重中之重。
相关例句：
Tiffany conceptualized herself as a mother, whose primary task was to feed her baby.
蒂法尼把自己定位为一位母亲，主要任务是哺育孩子。
His misunderstanding of language was the primary cause of his other problems
他对语言的误解是引起其他问题的主要原因。
They put a high premium on prevention and primary care.
他们对预防和初级护理极为重视。
Ninety-nine per cent of primary pupils now have hands-on experience of computers
现在99%的小学生都亲手操作过电脑。
Matter is primary.
物质是第一性的。
The voters are pretty sick of such a surfeit of primary sloganeering.
选民们对于初选时没完没了地空喊口号的现象感到发腻了。