Compounds:

HSK5000 A1+A2+B1

HSK5000 B2 + C1
3829 (interjection: [expressing surprise or doubt]) What? You two know each other? Oh, ihr zwei kennt euch? Ồ, hai người quen nhau à? Ồ , hai người quen nhau à ? Oh \| two \| people \| know \| each \| other \| huh