b2b 免费

miǎn fèi free (of charge)

发布

fā bù to release; to issue; to announce; to distribute

fā bù to release; to issue; to announce; to distribute; also written 發布|发布[fa1 bu4]

信息

xìn xī information; news; message

平台

píng tái platform; terrace; flat-roofed building

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