This is my little brother, Hu Rui.

这是我弟弟，胡睿。

My little brother, Sam, is on his knee.

我的小弟弟山姆坐在他的膝盖上。

I took my little brother to the park.

我带小弟去公园玩。

I bought a new toy for my little brother.

我给弟弟买了一个新玩具。

My little brother loves to eat ice cream.

小弟很喜欢吃冰淇淋。

My little brother always follows me around.

小弟总是跟在我后面。

My little brother likes to play video games.

我小弟喜欢玩电子游戏。

Mom asked me to look after my little brother.

妈妈让我照看弟弟。

My little brother is learning to ride a bike.

小弟正在学习骑自行车。

My little brother likes to play games with me.

小弟弟喜欢和我一起玩游戏。