十二三个。例句：ThatwouldmeanthatsheturnedtwelvethreeweeksafterstartingHogwartsandthatsheisalmostayearolderthanHarryandRon.这就是说她开始在霍格沃茨上学三个星期之后就过了十二岁生日，也就是说她比哈利和罗恩大了几乎一整岁。