My [ ] sister is 3 years [ ](old) than I.请各位姐姐哥哥添上去,[急]_英语解答

My [ ] sister is 3 years [ ](old) than I.
请各位姐姐哥哥添上去,[急]

人气：467 ℃　时间：2019-12-24 09:17:27

解答

my elder sister is 3 years older than I .
elder sister/brother哥哥姐姐时用elder
年纪大时用older