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
It's complicated.
原因很复杂。
As soon as she quit the room he returned to it.
她刚离开房间，他回来了。
Mrs.Sawyer stays at home every day.She does the housework.
索耶夫人每天呆在家里。她料理家务。