3 sentences

1. 这栋房子四面都有窗户。

   zhè dòng fáng​zi sì​miàn dōu yǒu chuāng​hu.

   The house has windows on all four sides.

   Source: Dong Chinese Dictionary

2. 日本是个四面环海的国家。

   Rì​běn shì gè sì​miàn huán​hǎi de guó​jiā.

   Japan is a country surrounded by the sea on all sides.

   Source: Tatoeba

3. 这个小镇四面环山，景色非常优美。

   zhè​gè xiǎo​zhèn sì​miàn huán shān, jǐng​sè fēi​cháng yōu​měi.

   This small town is surrounded by mountains on all sides, and the scenery is beautiful.

   Source: Dong Chinese Dictionary