商务英语口语对话:同事之间关系的处理

I'm really fed up with Larry! He's the biggest airhead I've ever met.He always  makes careless mistakes,and he's a pain to work with.
fed up with...受够了...
-EST + EVER 形容词最高级+EVER 表示"空前,有史以来,从来没有".

The only thing he's lacking in is experience.
he's lacking in 用现在分词表示一种当前属性.

It seems there are always a few rotten apples in the bunch,though.Like Margaret.
Though ad.(一般放在句尾)然而,还是
It was a hard job, he took it though.
这是份苦差事,可他还是接受了。