Harmonic progression
[计] 调和级数\\n[经] 调和级数
🧩 词语组成解析
harmonic
[hɑ:'mɔnik]
adj. [乐]和声的，悦耳的;[物]谐波的;和睦的，融洽的;[数]调和的;
n. [物] 谐波;[乐]泛音，和声;[数]谐函数，调和函数;
progression
[prə'ɡrɛʃən]
n. （事件的）连续;一系列;发展，进展;<数>级数;
🗣️ 情景例句
She'll be back around 2:30.
大概两点半会回来。
That won't happen, will it?
不会吧？
I started to sing. The baby watched and listened ,and she didn't cry any more.
我开始唱歌。小孩看着，听着，不再哭了。