Term of validity
[化] 有效期间\\n[经] 有效期限
🧩 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
You have an eye for beauty.
你有审美的眼光。
Business is the salt of life.
事业事人生之盐。
No, it isn't. It's a Japanese car.
不是。那是一辆日本产的小汽车。