I've umpired a cricket match for them.是什么意思？

I've umpired a cricket match for them.

我当过他们的板球比赛的裁判.

ve

abbr. Venezuela 委内瑞拉；

例句
Conclusion The TCD abnormity of VE occurs mainly in intracervical artery system.
结论病毒性脑炎脑血流动力学异常改变以颈内动脉系统为主.

umpired

vt. 为…做裁判（umpire的过去式与过去分词形式）；

例句
He umpired baseball games...
他担任棒球比赛的裁判。

cricket

n. 蟋蟀，板球，矮木凳；vi. 打板球；adj. 公平的；

例句
There was precious little about the cricket to animate the crowd...
板球比赛能激起观众热情的地方很少。

match

n. 比赛，对手，相配的人（或物），火柴；vt. 相同，适应，使较量，使等同于；vt.& vi. 使相配，使相称；

例句
To go ahead with the match after such clear advice had been asking for trouble.
都劝说得这么明白了还要继续比赛，这简直就是自讨苦吃。

for

prep. 为，为了，倾向于，关于，当作；conj. 因为，由于；

例句
I've come looking for a bit of advice.
我特来讨教。

them

pron. 他们，她们，它们；

例句
I take care of them to the best of my abilities...
我尽我所能地照顾他们。