reconfirm
vt. 再确认;再证实
例句
You have to reconfirm your flight 24 hours before travelling.
必须在乘飞机之前24小时再次确认你的航班。
《牛津词典》
Do I have to reconfirm?
我需要再确认吗?
May I reconfirm my flight?
我可以确认我的班机吗?