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
I'm sorry to say this, but there seems to be a mistake.
对不起，这儿好像有个错。
If it doesn't rain tomorrow, will you come to see me?
如果明天不下雨的话，你会来看我吗？
You must come to see it. And I owe you some money.
你一定要来看呀。我还欠你的钱呢。