Duration of prescription
[经] 命令(指示,规定,法令)有效期间
🧩 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
I think we'll cook dinner together.
我想， 我们一起做晚餐了。
He's Bob.
他是鲍勃。
One man had a head wound and was in pain.
有一个人头部受了伤，非常痛苦。