7 sentences

1. 鸟在树上筑了一个巢。

   niǎo zài shù shàng zhù le yī gè cháo.

   The bird built a nest in the tree.

   Source: Dong Chinese Dictionary

2. 古人筑坟以防水患。

   gǔ​rén zhù fén yǐ fáng shuǐ​huàn.

   Ancient people built embankments to prevent floods.

   Source: Dong Chinese Dictionary

3. 古代村民常筑坞以抵御外敌。

   gǔ​dài cūn​mín cháng zhù wù yǐ dǐ​yù wài​dí.

   In ancient times, villagers often built stockades to defend against foreign enemies.

   Source: Dong Chinese Dictionary

4. 工人们在河边筑起了一道防洪堤。

   gōng​rén men zài hé biān zhù qǐ le yī dào fáng​hóng​dī.

   The workers built a flood control levee along the river.

   Source: Dong Chinese Dictionary

5. 古代将领常在战场筑京观以彰显战功。

   gǔ​dài jiàng​lǐng cháng zài zhàn​chǎng zhù jīng​guàn yǐ zhāng​xiǎn zhàn​gōng.

   Ancient generals often built mounds of enemy corpses on battlefields to showcase their military achievements.

   Source: Dong Chinese Dictionary

6. 战士们在阵地前筑起了一道坚固的壁垒。

   zhàn​shì men zài zhèn​dì qián zhù qǐ le yī dào jiān​gù de bì​lěi.

   The soldiers built a solid barrier in front of the position.

   Source: Dong Chinese Dictionary

7. 在古代，人们通过筑土来建造房屋的基座。

   zài gǔ​dài, rén​men tōng​guò zhù tǔ lái jiàn​zào fáng​wū de jī​zuò.

   In ancient times, people built the foundations of houses by ramming earth.

   Source: Dong Chinese Dictionary