4 sentences

1. 防空部队击落了一架敌机。

   fáng​kōng bù​duì jī​luò le yī jià dí​jī.

   The anti-aircraft units shot down an enemy plane.

   Source: Dong Chinese Dictionary

2. 我军雷达发现了两架敌机。

   wǒ jūn léi​dá fā​xiàn le liǎng jià dí​jī.

   Our radar detected two enemy aircraft.

   Source: Dong Chinese Dictionary

3. 敌机在城市中心扔下了炸弹。

   dí​jī zài chéng​shì zhōng​xīn rēng​xià le zhà​dàn.

   Enemy planes dropped bombs on the city center.

   Source: Dong Chinese Dictionary

4. 雷达监测到有敌机向我方阵地来袭。

   léi​dá jiān​cè dào yǒu dí​jī xiàng wǒ​fāng zhèn​dì lái​xí.

   Radar has detected enemy aircraft attacking our positions.

   Source: Dong Chinese Dictionary