grubby的比较级为：grubbier...

Five whole pages of script were devoted to rubbishing her political opponents.整整5页讲稿都是对她的政敌的诋毁。She is often accused of rubbishing her opponents.她经常因诋毁对手而受到指责....

grubstake的一般过去时为：grubstaked...

v.擦( rub的第三人称单数 )，擦掉，涂，（使）相互磨擦...

Rubella的音标：Rubella的英式发音音标为：[ru:'belə]Rubella的美式发音音标为：[ru'bɛlə]...

grubstake的现在完成时为：grubstaked...

反反复复地提到别人不愉快的事情，（故意）触人痛处，触到痛处...