Their leading players were being whitewashed 4-0.是什么意思？

Their leading players were being whitewashed 4-0.

他们的主力阵容以0比4惨败。

their

pron. 他（她，它）们的，在提及性别不详的人时，用以代替 him 或 her；

例句
Their permissiveness toward their children reflects the wild abandon of their own lives.
他们对孩子的放任折射出他们自身生活的放浪形骸。

leading

adj. 重要的，主要的，前列的，首位的；n. 行距，铅框；v. 领导（lead的ing形式）；

例句
...the number of mergers and acquisitions made by Europe's 1,000 leading firms.
欧洲1,000家龙头企业的合并和收购案例的数目

players

n. 演员( player的名词复数 )，演奏者，（商业或政治方面的）参与者，游戏者；

例句
The players can advertise baked beans, but not rugby boots...
球员可以给烤菜豆做广告，但不能代言橄榄球靴。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

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

whitewashed

v. 粉饰，美化，掩饰( whitewash的过去式和过去分词 )；

例句
...a town of picturesque whitewashed cottages.
一座座小屋粉刷得洁白而漂亮的城镇