At the stock market your broker will inquire of other broker if they know of anyone who would like to sell the stock that you want to purchase.
你的经纪人将在股票交易所向别的经纪人打听他们是否知道有人要抛出你想买进的股票。
After the database including data input and data inquire function is established, users are able to input and inquire what they want.
数据库建立后，具有数据录入和数据查询功能，用户可以根据自己的需要存储和查询公共交通数据信息。
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