Principle of operation
[计] 工作原理, 操作原理
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
How old are you, anyway?
那……你多大了？
Who wrote that song?
那支歌曲谁写的？
But for the English examination, I would have gone to the concert last Sunday.
上个星期天，要不是有英语考试， 我就去听音乐会了。