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HSK levels

    保管

    bǎoguǎn

    1. to hold in safekeeping; to have in one's care; custodian; curator
    2. to guarantee
    3. certainly; surely

    请把这个重要文件保管好。 Qǐng bǎ zhège zhònyào wénjiàn bǎoguǎn hǎo.