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素不相识

sù bù xiāng shí

complete strangers

Character by character

素sù
ever
不bù
not
相xiāng
each other
识shí
know

Example

一位素不相识的人帮了我。
A complete stranger helped me.

Tone: neutral.

Usage and origin

素 means 'always, ever'; usually 素不相识的人, stressing kindness from strangers.

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