Validity of bids
[经] 投标有效期
🧩 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];
abbr. 商业智能开发工具集（Business Intelligence Development Studio）；本迪克斯综合数据系统（Bendix Integrated Data System）
🗣️ 情景例句
Are we too late for our dinner reservation?
我们会不会错过晚餐订位时间
Discussing all these details will get us nowhere.
讨论这些枝节问题是完全没有用的。
He did not see the bag until it was too late.
等他看见袋子时已经太晚了。