Organization of petroleum exporting countries
石油输出国组织, 欧佩克
🧩 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];
a. 输出的；出口的
国家（country的复数）
🗣️ 情景例句
It's unsafe for girls to go out alone at night.
女孩子晚上一个人外出很危险的。
Our first bill came yesterday, and we have some questions.
我们昨天收到的第一张帐单，有一些问题。
My wife was delighted that things had returned to normal once more.
一切又都恢复了正常，为此我妻子十分高兴。