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
Excuse me, I can't seem to find my seat. Can you help me?
不好意思，我好像找不到我的座位了。您能帮帮我吗？
God never shuts one door but he opens another.
天无绝人之路。
We are now living in a beautiful new house in the country.
我们现在住在乡间的一栋漂亮的新住宅里。