er4
two (banker's anti-fraud numeral); to betray

strokes 9
radical
strokes after radical 5
贰臣 貳臣 er4 chen2
turncoat official

贰心 貳心 er4 xin1
variant of 二心

离贰 離貳 li2 er4
to defect; to be disloyal

约翰贰书 約翰貳書 yue1 han4 er4 shu1
Second epistle of St John; also written 約翰二書|约翰二书

佐贰 佐貳 zuo3 er4
deputy; junior