Organization of petroleum-exporting countries
un. 石油输出国组织
🧩 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
Hello, it's good to see you again.
很高兴又见到你。
This river is one third as long as that river.
这条河只有那条河的三分之一长。
He will be earning only half as much as he used to,
他将来挣的钱只有他现在的一半。