严

yán

strict, rigorous, rigid; stern

HSK 4 7 丶

重

zhòng

heavy, weighty; to double, to repeat

HSK 3 9 丶

急

jí

anxious, worried; hasty, quick; pressing, urgent

HSK 3 9 丶

性

xìng

sex, nature, character; suffix converting a verb to an adjective

HSK 4 8 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

系

xì

system; line, link, connection

HSK 1 7 丶

统

tǒng

to govern, to command; to gather, to unite

HSK 5 9 丶

综

zōng

to sum up; to arrange threads for weaving

HSK 5 11 丶

合

hé

to combine, to join, to unite; to gather

HSK 4 6 丶

症

zhèng

ailment, disease, illness

HSK 6 10 丶