Theory of gravity
引力论
🧩 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
It was very thoughtful of you to send flowers.
你送花来，想得真周到。
I'm afraid you will be disappointed.
我怕你会失望。
I can't remember.The man who I served was wearing a hat.
我记不起来了。我接待的那个人戴着一顶帽子。