Principal series lines
[电] 主系线
🧩 词语组成解析
principal
['prɪnsəpl]
adj. 最重要的;主要的;资本的;本金的;
n. 首长，负责人;主要演员，主角;[法]委托人，当事人;本金;
prin主要的+cip拿，抓，握住+al形容词后缀 → 主要的；首要的
lines
[[lainz]]
n. 台词
🗣️ 情景例句
Everyone has a skeleton in his closet.
人人都有不可告人之事。
What was the weather like yesterday?
象昨天一样的天气？
Historians have long been puzzled by dots, lines and symbols which have been engraved on walls, bones, and the ivory tusks of mammoths.
长期以来，历史学家一直对雕刻在墙壁上、骨头上、古代长毛象的象牙上的点、线和形形色色的符号感到困惑不解。