备

bèi

to prepare; to get ready, to equip; ready; perfect

HSK 2 8 丶

用

yòng

to use, to employ, to apply; use

HSK 3 5 丶

二

èr

two; twice

HSK 1 2 丶

级

jí

level, rank; class, grade

HSK 3 6 丶

头

tóu

head; chief, boss; first, top

HSK 3 5 丶

呼

hū

to breathe, to exhale, to sigh; to call, to shout

HSK 4 8 丶

吸

xī

to inhale, to suck in; to absorb; to attract

HSK 4 6 丶

器

qì

device, instrument, tool; receptacle, vessel

HSK 5 16 丶