3 sentences

1. 邻里之间应当互助友爱。

   lín​lǐ zhī​jiān yīng​dāng hù​zhù yǒu'ài.

   Neighbors should help and care for one another.

   Source: Dong Chinese Dictionary

2. 邻里之间应当团结互助。

   lín​lǐ zhī​jiān yīng​dāng tuán​jié hù​zhù.

   Neighbors should unite and help each other.

   Source: Dong Chinese Dictionary

3. 我们互帮互助。

   wǒ​men hù bāng hù​zhù.

   We help each other.

   Source: OpenSubtitles