rent-free

例句：

1. 1.We rented a flat in the city center for a month, and it was rent-free.
   我们租了市中心的一个公寓，一个月免费。
2. 2. The company offers rent-free parking for its employees.
   该公司为员工提供免费停车服务。
3. 3. The apartment is rent-free, so you don't have to pay any monthly fees.
   这套公寓是免租的，所以你不需要支付任何月费。