8 sentences

1. 战士们誓死保卫祖国的边疆。

   zhàn​shì men shì​sǐ bǎo​wèi zǔ​guó de biān​jiāng.

   The soldiers vowed to defend the country's borders to the death.

   Source: Dong Chinese Dictionary

2. 战士们日夜守卫着祖国的边疆。

   zhàn​shì men rì​yè shǒu​wèi zhe zǔ​guó de biān​jiāng.

   The soldiers guard the country's borders day and night.

   Source: Dong Chinese Dictionary

3. 战士们长年守卫在祖国的边疆。

   zhàn​shì men cháng​nián shǒu​wèi zài zǔ​guó de biān​jiāng.

   Soldiers guard the motherland's borders all year round.

   Source: Dong Chinese Dictionary

4. 战士们在边疆英勇抗击侵略者。

   zhàn​shì men zài biān​jiāng yīng​yǒng kàng​jī qīn​lüè​zhě.

   Soldiers bravely fought off invaders on the border.

   Source: Dong Chinese Dictionary

5. 这位诗人被放逐到了遥远的边疆。

   zhè wèi shī​rén bèi fàng​zhú dào le yáo​yuǎn de biān​jiāng.

   The poet was exiled to a remote frontier.

   Source: Dong Chinese Dictionary

6. 他因为政治原因被流放到了边疆。

   tā yīn​wèi zhèng​zhì yuán​yīn bèi liú​fàng dào le biān​jiāng.

   He was exiled to the frontier for political reasons.

   Source: Dong Chinese Dictionary

7. 这些士兵驻守在边疆，誓死要保家卫国。

   zhè​xiē shì​bīng zhù​shǒu zài biān​jiāng, shì​sǐ yào bǎo jiā wèi​guó.

   These soldiers are stationed at the border, vowing to defend their homes and country to the death.

   Source: Dong Chinese Dictionary

8. 他在艰苦的边疆地区服役了整整三年。

   tā zài jiān​kǔ de biān​jiāng dì​qū fú yì le zhěng​zhěng sān nián.

   He served in the military in the harsh border regions for three whole years.

   Source: Dong Chinese Dictionary