刻苦

Adjective

 * 1) industrious; assiduous; diligent
 * 2)  basic; frugal

Synonyms




Adverb

 * 1) industriously; assiduously; diligently; hard

Verb

 * 1)  to treat harshly

Noun

 * 1) hard work

Verb

 * 1) work hard