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
What can I do for you?
我能帮你什么忙？
The doctor said it's just a mild cold, There's nothing to worry about.
医生说只是有点凉，不需要担心。
The problem is finding land for it.
问题是要找到土地来修建厂房。