xún xìn
to pick a quarrel
to start a fight
xìn
quarrel
dispute
a blood sacrifice (arch.)
biān xìn
clash on the frontier
border conflict
guān xìn sì xì
lit. to look for holes, and observe gaps (idiom); to search out one's opponent's weak points
to look for the Achilles heel
xún xìn zī shì zuì
disorderly behavior (PRC law)