弟弟的用法和样例：
例句
-
我的弟弟是饲养牛的饲养员。
My brother is a cattle breeder. -
他长大了，穿剩下的衣服就给了他的弟弟。
As he grew up he passed on his clothes to his younger brother. -
你弟弟小小的年龄竟高出你一大截，真令人恼火！
How maddening to have your younger brother tower over you, at his age, too! -
他对他弟弟很有影响。
He has a tremendous hold over his younger brother. -
她张嘴呆看着那个高个子，不相信他就是她的弟弟。
She gaped at the tall man, not believing that he was her younger brother.
