プログレッシブ和英中辞典(第4版)の解説
たざんのいし【他山の石】
a lesson; an example (from which one can profit)
彼の失敗を他山の石としなさい
Let his failure be a lesson to you.
日本語の解説|他山の石とは
a lesson; an example (from which one can profit)
彼の失敗を他山の石としなさい
Let his failure be a lesson to you.