For example, if a debtor wants to hedge foreign exchange futures, the only subject matter he can choose is the foreign exchange rate. He can buy local currency and short foreign exchange futures. If the exchange rate fluctuates obviously, the higher the hedging degree, the easier it is to carry out the so-called arbitrage.

Similarly, you can also sell your local currency for multi-foreign currency futures. In the near future, if the foreign exchange market fluctuates, the local currency depreciates and the foreign currency appreciates, then your own debt or borrowed foreign debt can be hedged.