unserviceability

例句：

1. 1. The aircraft was unserviceable due to a malfunctioning engine.
   由于引擎故障，这架飞机无法提供服务。
2. 2.The train was unable to reach its destination due to the sudden weather change.
   由于突然的天气变化，火车无法到达目的地。
3. 3.The machine is unserviceable, so we will need to repair it before we can use it again.
   这台机器无法提供服务，所以我们需要修理它才能再次使用。