His brother is being rude.是什么意思？

His brother is being rude.

他的哥哥变得粗暴无礼起来了。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

brother

n. 兄弟，同事，同胞，同志；int. （表示生气或吃惊）我的老兄！；

例句
Julian Lloyd Webber thinks his brother would like the approbation of serious critics...
朱利安·劳埃德·韦伯认为他弟弟希望获得严肃批评家的认可。

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

being

n. 存在，生物，人，要素，本质；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

rude

adj. 粗鲁的，简陋的，狂暴的，近乎下流的；

例句
It was a rude awakening to learn after I left home that I wasn't so special anymore.
离家后我才猛然意识到自己不再有什么特别。