素不相识 Traditional 素不相識 sù bù xiāng shí 🔊 to be total strangers (idiom) HSK 7–9 + Keep this word Meanings sù bù xiāng shí 素不相識 to be total strangers (idiom) Its characters 素sùraw silkHSK 7–9不bùnot; noHSK 1相xiāngeach other识shíto knowHSK 6