小弟的英文：
one's younger brother
- My little brother is such a rogue!
我的小弟真是个捣蛋鬼！ - He took his arm from sonny's shoulder and slapped him, lightly, affectionately, with the back of his hand
他抽回搂着小弟弟肩膀的手臂，用手背亲热地轻轻拍了拍小弟。 - Caught up in the rhythm of the music, my baby brother danced around while Daddy hummed and Mother whistled
陶醉在音乐中的小弟禁不住随着节奏跳起舞来，父亲轻轻地哼着，母亲也吹起口哨来。
num. 一；同一个、最重要的一个
det. 代替a或an，表示强调；某位（用于不太熟悉之人的姓名之前）
pron. 任何人；一个人；一个事物；其中的一个人
- One, Taipei, one way.
台北单程票一张。 - This one is not a spoof.
这个就不是开玩笑了。 - One and one make(s) two.
一加一等于二。
[ young ]的形容词比较级
- The girl in red is his younger sister.
那个穿红衣服的女孩是他妹妹。 - Anne's not getting any younger.
安妮一点没有变年轻。 - The younger mechanic readily fixed the car.
年轻的机修工很快地把车修好了。
n. 兄弟；教友；同事；战友；同胞
int. 我的老兄
- He has scrap with his brother.
他与他的哥哥打架。 - My brother is a football maniac.
我哥哥是个足球迷。 - My brother and she are engaged.
我兄弟和她订婚了。