1. Why? One difficulty is to construct the agreements.
    为什么呢？困难之一是起草这些协议。

2. However, in an era of smaller budgets, the United States government is unlikely to come up with the money needed during the next 20 years to construct the superhighway.
    然而，在一个预算拨款相对较少的时期，美国政府不可能拿得出今后20年里建造信息高速公路所需的钱款。

3. In this case, you´d probably construct a portfolio with some shares(but not high risk ones),
    在这种情况下，你大概想制定一份包括某些股份（但不是风险很大的股份）的投资组合，