Catholics go to confession to be purged of sin/purge (away) their sin/purge their souls of sin.
天主教徒透过告解以获得赦罪[净化灵魂].
They promised that the party would be purged of racists/that racists would be purged from the party.
他们保证该党一定把种族主义分子清除掉[把种族主义分子从党内清洗出去].
So-called traitors were purged (from their ranks).
所谓的叛徒均已（从队伍中）清洗出去.
