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
which has been vacant for over a year now,
已空了一年多，
Let me see. She has 30 minutes Tuesday afternoon.
让我查查，她周二下午有30分钟。
Three pounds fifty pence,please.
请付3英镑50便士。