16 sentences

1. 该国正式向邻国宣战。

   gāi guó zhèng​shì xiàng lín​guó xuān​zhàn.

   The country officially declared war on its neighbor.

   Source: Dong Chinese Dictionary

2. 战火很快波及了邻国。

   zhàn​huǒ hěn kuài bō​jí le lín​guó.

   The war soon spread to neighboring countries.

   Source: Dong Chinese Dictionary

3. 日本与韩国是邻国。

   Rì​běn yǔ Hán​guó shì lín​guó.

   Japan and South Korea are neighbors.

   Source: Tatoeba

4. 大夫受命出聘邻国。

   dà​fū shòu​mìng chū pìn lín​guó.

   The high official was commissioned to visit a neighboring country as an envoy.

   Source: Dong Chinese Dictionary

5. 战火蔓延到了邻国。

   zhàn​huǒ màn​yán dào le lín​guó.

   The flames of war spread to neighboring countries.

   Source: Dong Chinese Dictionary

6. 战败后，他被送到邻国为质。

   zhàn​bài hòu, tā bèi sòng dào lín​guó wéi zhì.

   After the defeat, he was sent to a neighboring country as a hostage.

   Source: Dong Chinese Dictionary

7. 那个飞行员叛逃到了邻国。

   nà gè fēi​xíng​yuán pàn​táo dào le lín​guó.

   The pilot defected to a neighboring country.

   Source: Dong Chinese Dictionary

8. 他们非法侵占了邻国的土地。

   tā​men fēi​fǎ qīn​zhàn le lín​guó de tǔ​dì.

   They illegally seized and occupied the land of their neighboring country.

   Source: Dong Chinese Dictionary

9. 中日两国是隔海相望的邻国。

   Zhōng Rì liǎng guó shì gé hǎi xiāng​wàng de lín​guó.

   China and Japan are neighbors separated by a strip of water.

   Source: Dong Chinese Dictionary

10. 士兵们不小心越界进入了邻国。

    shì​bīng men bù xiǎo​xīn yuè​jiè jìn​rù le lín​guó.

    The soldiers accidentally crossed the border into the neighboring country.

    Source: Dong Chinese Dictionary

11. 两个邻国之间爆发了激烈的武装冲突。

    liǎng gè lín​guó zhī​jiān bào​fā le jī​liè de wǔ​zhuāng chōng​tū.

    A fierce armed conflict broke out between the two neighboring countries.

    Source: Dong Chinese Dictionary

12. 那个独裁者吞并邻国的野心昭然若揭。

    nà gè dú​cái zhě tūn​bìng lín​guó de yě​xīn zhāo​rán​ruò​jiē.

    The dictator's ambition to annex neighboring countries is plain for all to see.

    Source: Dong Chinese Dictionary

13. 保持邻国间的友好关系对双方都有利。

    bǎo​chí lín​guó jiān de yǒu​hǎo guān​xi duì shuāng​fāng dōu yǒu​lì.

    Maintaining friendly relations between neighboring countries is beneficial to both sides.

    Source: Dong Chinese Dictionary

14. 这两个邻国决定结盟以共同应对外部的威胁。

    zhè liǎng gè lín​guó jué​dìng jié​méng yǐ gòng​tóng yìng​duì wài​bù de wēi​xié.

    The two neighboring countries decided to form an alliance to jointly deal with external threats.

    Source: Dong Chinese Dictionary

15. 文化交流计划可以加强邻国之间的友好关系。

    wén​huà jiāo​liú jì​huà kě​yǐ jiā​qiáng lín​guó zhī​jiān de yǒu​hǎo guān​xi.

    Cultural exchange programs can strengthen friendly relations between neighboring countries.

    Source: Tatoeba

16. 由于地缘关系，这两个邻国在文化和习俗上有很多相似之处。

    yóu​yú dì​yuán guān​xi, zhè liǎng gè lín​guó zài wén​huà hé xí​sú shàng yǒu hěn​duō xiāng​sì zhī chù.

    Due to their geographic proximity, these two neighboring countries share many similarities in culture and customs.

    Source: Dong Chinese Dictionary