Wǒ / zài / nán / miàn / de / chuāng / hu / shàng / zhuāng / le / zhē / yáng / bǎn / xià / wǔ / wū / lǐ / liáng / kuai / duō / le

我在南面的窗户上装了遮阳板，下午屋里凉快多了。

I installed a sunshade on the south-facing window, and the room became much cooler in the afternoon.