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
you can pay the mortgage every month.
你们能每月按时付款。
Thank you very much again for this wonderful party.
再次感谢你们的这次聚会。
lack of physical and mental energy, both of which are essential in turning out and throwing away, and sentiment.
一是体力，精力均告不佳，这二者是清除无用的东西必不可少的因素；另一原因是感情因素。