apple苹果官网如何线下预约维修？

"iphone/ipad要在网上预约维修，需要通过机器的序列号通进行预约，序列号的查询操作": "To book an online repair service, you need to enter the serial number through the machine. To check the serial number: Open Settings > General > About This Machine. You can find the serial number in this section and use it to book an online repair service from Apple's official website."

"To book an online repair service on apple's official website": "Book an online repair service on Apple's official website."