English to Portuguese Bus/Financial Business/Commerce (general)

[The position Lipschutz is describing is a bull call spread. In order for the trade to be profitable, the price of the yen must rise above 54 by an amount sufficient to at least offset the cost of the spread. Unlike a straight call position, however, the profit potential is limited to one full point per contract, since the long 54 call position is offset by the sale of an equal size 55 position.