Hi Xing Gao, 

Welcome to Box Community and glad to help!

Notes:

• When items are deleted from a collaboration folder, both the owner and the person who deleted the item can recover the items from the Trash. 


• If you are removed as a collaborator from a file or folder that you've deleted, you no longer see that item in Trash. To see the item in Trash, you must be again added as a collaborator to that item.

Additionally, when Box purges your trashed content there is still a 14-day grace period for paying customers, during which Product Support can recover your content.  Beyond this 14-day grace period, however, files or folders purged from your Box trash may not be recoverable and may be lost forever. Please note that this recovery grace period does not apply to Free accounts. We are unable to support file recovery for our Free Individual plan. 

Thanks for posting! 

Can I recover deleted file from trash by paying money