各打五十大板

lit. to give each one a flogging of fifty strokes (idiom) / fig. to punish the guilty and the innocent alike / to put the blame on both parties

each / every

dozen (loanword)

to beat / to strike / to hit / to break / to type / to mix up / to build / to fight / to fetch / to make / to tie up / to issue / to shoot / to calculate / to play (a game) / since / from

five / 5

fifty

ten / 10

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

board / plank / plate / shutter / table tennis bat / clappers (music) / CL:塊|块[kuai4] / accented beat in Chinese music / hard / stiff / to stop smiling or look serious

see 老闆|老板, boss

to catch sight of in a doorway (old)