The ways to get a lot of trading keys in this game include participating in activities and tasks, buying in the game mall or participating in market transactions.

1. Participate in activities and tasks: Participating in various activities and tasks in the game will reward trading keys. Try to participate in various activities, complete tasks and achieve goals, so that you have a chance to get more trading keys.

2. Buy in the game mall: Sometimes the game mall will provide the purchase option of the transaction key. You can purchase transaction keys in in-game currency or real currency.

3. Participate in market transactions: Some players get trading keys by selling items in the game market. You can try to sell your own items in the market and exchange game coins or items for trading keys.