沙发床

jiā shang yī zhāng shā fā chuáng kè tīng biàn biàn chéng le kè fáng

加上一张沙发床，客厅便变成了客房。

A sitting room can be transformed into a guest bedroom simply by adding a sofabed.

nǐ kě yǐ jiāo wǒ rú hé tān kāi zhè zhāng shā fā chuáng ma

你可以教我如何摊开这张沙发床吗？

Could you show me how to open this sofa bed?