Electronic theory of valenfy
[机] 价电子理论
🧩 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
There is nothing better than a hot dog in the country.
在美国没有比热狗更好的东西了。
We never know the worth of water till the well is dry.
井干方知水可贵。
I caught the last bus.
我赶上了最后一班车。