HSK 2
Nǐ zuì xǐhuan nǎgè xuékē?
Which subject do you like the most?
HSK 4
Shùxué shì yì mén jīchǔ xuékē.
Mathematics is a fundamental discipline.
HSK 7-9
Kuà xuékē yánjiū yuèláiyuè zhòngyào.
Interdisciplinary research is becoming increasingly important.
