Grade of delivery
[计] 投递等级
🧩 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];
🗣️ 情景例句
He is tough to work with.
他很难共事。
When the well is full, it will run over.
井水满了要溢出。
As it was extremely narrow, the man was unable to move,
由于烟囱太窄，那人无法动弹。