Primary energy
[化] 一次能源
🧩 词语组成解析
primary
['praɪmɛri]
adj. 首要的，主要的;最早的，原始的;[地质学]原生的;基本的;
n. 第一位;最好者;要素;候选人提拔会;
prim第一，主要的+ary形容词后缀 → 第一的，最开始的 → 最初的；根本的
🗣️ 情景例句
I have worked hard at my major subject.
我对主修课特别用功。
The defeated army must assent to the domination of the victors.
被打败的军队必须同意胜利军队的支配。
Apparently what happened was that water collected on these tar pits, and the bigger animals like the elephants ventured out on to the apparently firm surface to drink, and were promptly bogged in the tar.
沥青坑里积存了水，大象那样的大动物冒险到似乎坚固的水面上去饮水，立即掉进了沥青坑。