boy 
英 [bɔɪ]  美 [bɔɪ] 
n. 少年，男孩；儿子；男仆；老弟，家伙

例句：
He was still just a boy. 

他还只是个小男孩。

a photo of his father taken at the time of the boy's birth 

男孩出生时他爸爸照的一张相片

a boy of five 

一个5岁的男孩

I knew him when he was a little boy. 

他还是个小男孩的时候我就认识他了。