2 sentences for 口袋 (kǒu​dài — bag)

1. 这口袋重物坠得他胳膊发酸。

   zhè kǒu​dài zhòng​wù zhuì de tā gē​bo fā​suān.

   The heavy bag weighed down his arm until it ached.

   Source: Dong Chinese Dictionary

2. 这只口袋装不下这么多土豆。

   zhè zhī kǒu​dài zhuāng bù​xià zhè​me duō tǔ​dòu.

   This bag cannot hold so many potatoes.

   Source: Dong Chinese Dictionary