2 sentences

1. 我在钢琴旁坐下。

   wǒ zài gāng​qín páng zuò xia.

   I sat down at the piano.

   Source: CCMatrix

2. 在餐桌旁坐下吃晚餐的时候，我们又喝了一杯。

   zài cān​zhuō páng zuò xia chī wǎn​cān de shí​hou, wǒ​men yòu hē le yī bēi.

   When we sat down at the table for dinner, we had another drink.

   Source: CCMatrix