所以即期汇率就是在即期交易时的汇率,而后者就是在期货交易时的汇率.

So spot rate is for immediate delivery and forward rate is for delivery later.

掉期率是指远期交易率和即期交易率之间的差额.

The swap rate is the margin between the forward exchange rate and the spot rate.

那么为何该公司不可以等到三周后再来作即期交易购买美元呢？

Then, why can't the company wait for three weeks to buy the dollars at the spot rate?

那么为何该公司不可以等到三周后再来作即期交易购买美元呢？

Then, why can't the company wait for three weeks to buy the dollars at the spot rate ?