Conservation of electricity
[电] 电量守恒
🧩 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
Hello, ... speaking. Who do you wish to speak to?
喂， 我是……你想找谁？
It's quite an intersive few days.
那几天可真紧张。
The man opened it.
楼上人打开门。