私人

sī rén private; personal; interpersonal; sb with whom one has a close personal relationship; a member of one's clique

交易

jiāo yì (business) transaction; business deal; CL:筆|笔[bi3]

担保

dān bǎo to guarantee; to vouch for

平台

píng tái platform; terrace; flat-roofed building

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