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
My mistake. it won't happen again.
是我的错。 不会再发生类似的事情了。
I beg your pardon!
对不起！
To her horror he said that she was two hours too soon.
搬运工说她早到了两个小时，她听后大吃一惊。