活教材

huójiàocái ㄏㄨㄛˊ ㄐㄧㄠˋ ㄘㄞˊ

    • real-life case that offers a lesson
    • living example

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
living teaching material
Meaning
A real-life case that offers a lesson.

Sources