弟弟用英语怎么说读

"younger brother" in English is spelled "little brother"，读音为 [ˈlɪt(ə)l ˈbrʌðə(r)].
来源是英语中little和brother这两个词组合而成。

例句1: He is my little brother. 他是我的弟弟。
例句2: My little brother always follows me around. 我的弟弟总是跟着我。
例句3: I have to take care of my little brother while my parents are away. 我的父母不在时，我必须照顾我的弟弟。