i know a triplet. they are self,表示上午九点到十一点,让我们把它们记住吧!三胞胎,我认识了一个三胞胎, which means from 9:00 to 11:00 in the morning. this is the triplets i know. let s remember them!我问了一下字典妈妈,“己”和“已”相信大家早就认识了,