zhè / jiān / lǎo / fáng / zi / de / zhōng / yāng / yǒu / yí / ge / yòng / lái / qǔ / nuǎn / de / huǒ / táng

这间老房子的中央有一个用来取暖的火塘。

There is an indoor fire pit in the center of this old house for heating.