your younger brother
君の弟を一緒に連れてきなさい。
Bring your younger brother along.
あの子は君の弟？
Is that boy your younger brother?
— 甘い生活 (1960)
たとえ道で会っても―君の弟だと分かる
Even if I ran into him on the street, I’d know he was your younger brother.
— 最強のふたり (2011)
君と君の弟を見分けるのは難しい。
It's hard to tell you and your younger brother apart.
君の弟は君がパリへ行ったと言った。
Your younger brother said that you went to Paris.
君か君の弟、どちらか間違っています。
Either you or your brother is mistaken.
私は君の弟と同じ辞書を持っている。
I have the same dictionary as your younger brother.
トムは君の弟なんだよ。
Tom is your younger brother.