alter switch

例句：

1. 1. The engineer needs to alter the switch on the circuit board.
   工程师需要调整电路板上的开关。
2. 2. The doctor suggested that she alter the medication for her condition.
   医生建议她调整药物来治疗她的病情。
3. 3. The car's engine is not working properly;we need to alter the switch.
   汽车的引擎工作不正常，我们需要更换开关。