租房时房东通常要求租客预付三个月到半年的租金，以确保租约的顺利履行。
When renting a house, landlords usually require tenants to prepay three months to half a year's rent to ensure the smooth performance of the lease.
When renting a house, landlords usually require tenants to prepay three months to half a year's rent to ensure the smooth performance of the lease.