Argand diagram
阿冈图或阿根图（两垂直轴, 一为实数轴, 一为虚数轴）
🧩 词语组成解析
n. 具有管状灯芯的灯头
🗣️ 情景例句
at this point in our lives?
在这个时候怎么样？
To be virtuous is to do good.
行善是美德。
That's what we did in China in the old days, before thermoses were invented, said Wei Hua.
“那是我们中国从前未发明出热水瓶时的做法。”魏华说。