Liu gave in-depth analysis of the features and divisions of the Korean interjection, improving application of interjection in parts of speech of Korean language.

An awarding ceremony took place at the Mansudae Assembly Hall in Pyongyang on Monday.

Present there were Vice-Premier Kim Yong Jin, who is chairman of the State Commission for Conferment of Academic Degrees and Titles, and Secretary General of the Commission Kang Chun Gum and officials concerned.

At the ceremony Liu said she would fulfill her obligation befitting a student studying at Kim Il Sung University.