Spread on the forex margin trading

In the forex market, the spread is defined as the price gap between the bid rate and the offered rate. Here, the bid rate stands for the lower price of the quotation at which you can sell at any time, and the offered rate is the higher price at which you can buy at any time. For instance, when the price quotation is shown as 120.30-35, the spread is 5 points, and 120.30 is the bid rate while 120.35 is the offered rate.