4 sentences

1. 不要当众揭人的短。

   bù yào dāng​zhòng jiē rén de duǎn.

   Don't expose others' shortcomings in public.

   Source: Dong Chinese Dictionary

2. 当众揭别人的短是不礼貌的行为。

   dāng​zhòng jiē bié​ren de duǎn shì bù lǐ​mào de xíng​wéi.

   It is rude to expose someone's shortcomings in public.

   Source: Dong Chinese Dictionary

3. 揭先生是我们的新邻居。

   Jiē xiān​sheng shì wǒ​men de xīn lín​jū.

   Mr. Jie is our new neighbor.

   Source: Dong Chinese Dictionary

4. 他伸手揭下了贴在墙上的旧海报。

   tā shēn​shǒu jiē xià le tiē zài qiáng shàng de jiù hǎi​bào.

   He reached out and tore down the old poster on the wall.

   Source: Dong Chinese Dictionary