Whenever you criticize him, he always has an excuse.是什么意思？

Whenever you criticize him, he always has an excuse.

你批评他, 他总有说头儿.

whenever

adv. 究竟什么时候，不论何时；conj. 无论什么时候，随时，无论何时，每当；

例句
Relax and take a breather whenever you feel that you need one.
要放松，什么时候觉得需要休息就休息一下。

you

pron. 你，你们，您们，各位，大家；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

criticize

vt.& vi. 分析，评估，批评，挑剔；

例句
You eat her food, enjoy her hospitality and then criticize her behind her back.
你吃着她的食物，享受着她的款待，然后还在背地里指责她。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

always

adv. 总是，老是，永远，始终，常常，不断地；

例句
Some cities are always going to be more advantaged.
一些城市总会有一些得天独厚的优势。

has

v. 有( have的第三人称单数 )，（亲属关系中）接受，拿，买到；

例句
...the operation a patient has had.
病人做过的手术

an

art. 一（在元音字母前代替不定代词a），一任一某一，一个；

例句
He started eating an apple...
他开始吃苹果。

excuse

vt. 原谅，为…申辩，免除，宽免，给…免去；n. 借口，托辞，道歉，歉意，辩解，请假条，理由；vi. 作为借口，请示宽恕，表示宽恕；

例句
I made some excuse and bolted for the exit.
我编了个借口后便向出口冲去。