zài / chū / shòu / zhè / chù / fáng / chǎn / zhī / qián / mài / fāng / bì / xū / xiān / tōng / zhī / yōng / yǒu / yōu / xiān / chéng / gòu / quán / de / yì / fāng在出售这处房产之前,卖方必须先通知拥有优先承购权的一方。Before selling the property, the seller must first notify the party with the right of first refusal.