Composition of petroleum
[建] 石油的成份
🧩 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
Well, the company has some financial problems. People there are all thinking of quitting.
是这样的，公司有些财政困难。人们都在想辞职。
As the old cock crows, so doth the young.
有其父必有其子。
Did she buy them here?
她是在这儿买的吗？