поле́зно
adverb
Meanings
- good
- healthy
- it is useful, it is healthy, it is wholesome
- useful
Usage notes
+ dative
Examples
- Сумасше́ствие полезно для здоро́вья.Being crazy is healthy.
- Не вся́кое зна́ние полезно.All knowledge is not good.
- Э́то крайне полезно.It is of great use.
