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
Aren't you a little scared?
难道你不会感到有点紧张吗？
I'd appreciate it if you would turn out the lights.I'm sleepy.
如果你关灯我将感激你的.我困了。
The last question is what to read.
最后一个问题是读什么。