北

běi

north; northern; northward

HSK 1 5 丶

京

jīng

capital city

HSK 1 8 丶

核

hé

core, kernel; nut, seed; atom

HSK 5 10 丶

武

wǔ

military; martial, warlike

HSK 5 8 丶

器

qì

device, instrument, tool; receptacle, vessel

HSK 5 16 丶

研

yán

to grind, to rub; to study, to research

HSK 4 9 丶

究

jiū

to dig into, to investigate; actually, after all

HSK 4 7 丶

所

suǒ

place, location; "that which", a particle introducing a passive clause

HSK 2 8 丶