Dielectric constant of vacuum
[化] 真空介电常量
🧩 词语组成解析
n. 电介质, 绝缘体\\na. 非传导性的
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
It was a pleasant surprise.
那是个惊喜。
Jack is up and about now.
杰克病后复原了。
He has eight lawyer assistants to help him and examines every single letter in detail.
他有8位律师作他的助手协助工作，每封信都详细批阅。