Grade of oil
[经] 石油品级
🧩 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];
oil
[ɔɪl]
n. 油;石油;油画;燃油;
vt. 给…加油;
vi. 化成油;
🗣️ 情景例句
Ah! Miss Stewart! Welcome!
嗨！ Stewart小姐！ 欢迎你！
Excuse me I couldn't tell you beforehand.
对不起我不能事先告诉你。
Sweden has evolved an excellent system for protecting the individual citizen from highhanded or incompetent public officers.
在瑞典，已逐渐形成了一种完善的制度以保护每个公民不受专横的和不称职的政府官员的欺压。