從難從嚴

Simplified: 从难从严

cóngnáncóngyán ㄘㄨㄥˊ ㄋㄢˊ ㄘㄨㄥˊ ㄧㄢˊ

    • to impose demanding and strict conditions (esp. in training) to train under deliberately difficult and strict conditions

Character by character

Sources