用英语说小姐姐早安怎么说

"Good morning, sister" or "Good morning, little sister" are both ways you can say "早安小姐姐" in English. "Sister" can be used to refer to a woman who is a member of the same family as you, or it can be used as a term of endearment or respect. If you are speaking to a woman who is not actually your sister, it is generally more appropriate to use "little sister" as a term of endearment.