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
Maybe Lillian will be at the reunion.
或许Lillian也会参加聚会。
Don't speak all you know, but know all you speak.
不要尽言所知，而要尽知所言。
Who is he?
他是谁？