One way is to buy put options in euros. At this time, if the euro exchange rate does fall, then the put option will take effect, and the losses suffered by selling the euro can be earned back through the put option.

Another method is to sell three-month euro forwards or futures and lock in a satisfactory exchange rate in advance. At this time, if the exchange rate of the euro falls, then making profits in the forward or futures market can make up for the loss of selling the euro.