流

liú

to flow, to drift, to circulate; class

HSK 4 10 丶

行

xíng

to go, to walk, to move; professional

HSK 3 6 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

结

jié

knot, tie; to connect, to join

HSK 3 9 丶

膜

mó

membrane, film; to kneel and worship

HSK 6 14 丶

炎

yán

flame, blaze; hot

HSK 6 8 丶