2 sentences for 官 (guān — governmental)

1. 这家报纸是当地最权威的官媒。

   zhè jiā bào​zhǐ shì dāng​dì zuì quán​wēi de guān méi.

   This newspaper is the most authoritative official media outlet in the area.

   Source: Dong Chinese Dictionary

2. 这些资产全归官有，私人不能随意买卖。

   zhè​xiē zī​chǎn quán guī guān yǒu, sī​rén bù néng suí​yì mǎi​mài.

   These assets are all state-owned; private individuals cannot buy or sell them at will.

   Source: Dong Chinese Dictionary