4 sentences for 坚守 (jiān​shǒu — defend)

1. 士兵们坚守在漫长的阵线上。

   shì​bīng men jiān​shǒu zài màn​cháng de zhèn​xiàn shàng.

   The soldiers held their positions along the long front line.

   Source: Dong Chinese Dictionary

2. 即无外援，我们也必须坚守阵地。

   jí wú wài​yuán, wǒ​men yě bì​xū jiān​shǒu zhèn​dì.

   Even without outside help, we must hold our ground.

   Source: Dong Chinese Dictionary

3. 战士们在敌人的猛烈进攻下坚守阵地。

   zhàn​shì men zài dí​rén de měng​liè jìn​gōng xià jiān​shǒu zhèn​dì.

   The soldiers held their ground under the enemy's fierce attack.

   Source: Dong Chinese Dictionary

4. 战士们誓死坚守阵地，击退了敌人的数次进攻。

   zhàn​shì men shì​sǐ jiān​shǒu zhèn​dì, jī​tuì le dí​rén de shù cì jìn​gōng.

   The soldiers swore to hold their ground and repelled several enemy attacks.

   Source: Dong Chinese Dictionary