1.backbit  2.backbitten  

背后的英語翻譯：

backside; rear; rearward

誹謗的英語翻譯：

malign; defame; blacken; libel; scandalize; slander; vilify
【法】 asperse; aspersion; calumniate; calumniation; calumny; defame
disparage; disparagement; evil speaking; famacide; libel; malign
run down; slander; traduce; traducement; verbal injury; vilification
vilify; vilipend; vituperation