C yǔyán zài xìtǒng biānchéng zhōng réngrán hěn zhòngyào.
The C language is still important in systems programming.
Tips
usage
语言 (yǔyán, 'language') is the suffix for all programming languages: C语言, Java语言, Python语言. In casual speech programmers often drop 语言: 'he writes C' = 他写 C.