auxiliary condition

例句：

1. 1. The auxiliary battery is essential for the functioning of the device.
   辅助电池对于该设备的运行至关重要。
2. 2. In a team, each member has an auxiliary role to complement their main responsibilities.
   在团队中，每个成员都有辅助角色来补充他们的主要职责。
3. 3. The auxiliary light was turned on in case of emergency.
   备用灯被打开以防万一。