lìshǐ / shàng / xǔduō / jiānchén / dōu / shì / kǒumìfùjiàn / biǎomiàn / zhōngchéng / ànzhōng / hàirén

历史上许多奸臣都是口蜜腹剑，表面忠诚，暗中害人。

Throughout history, many treacherous court officials have been hypocritical and murderous, outwardly loyal but secretly harming others.