2 sentences for 降下 (jiàng​xià — lower)

1. 演出结束后，红色的大幕缓缓降下。

   yǎn​chū jié​shù hòu, hóng​sè de dà mù huǎn​huǎn jiàng​xià.

   After the performance, the large red curtain slowly lowered.

   Source: Dong Chinese Dictionary

2. 他降下了车窗，向路边的朋友打招呼。

   tā jiàng​xià le chē​chuāng, xiàng lù​biān de péng​you dǎ zhāo​hu.

   He rolled down the car window and greeted a friend on the roadside.

   Source: Dong Chinese Dictionary