包藏禍心

bāocánghuòxīn

To secretly have an intention to hurt someone.

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bao1 cang2 huo4 xin1

to harbor evil intentions (idiom); concealing malice

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包藏禍心|包藏祸心 [bāo cáng huò xīn] ► to harbor evil intentions (idiom); concealing malice