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]

招

zhāo to recruit; to provoke; to beckon; to incur; to infect; contagious; a move (chess); a maneuver; device; trick; to confess

工

gōng work; worker; skill; profession; trade; craft; labor

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