4 sentences

1. 我两手空空。

   wǒ liǎng shǒu kōng​kōng.

   My hands are empty.

   Source: OpenSubtitles

2. 看来我不会双手空空离开日内瓦了。

   kàn​lai wǒ bù huì shuāng​shǒu kōng​kōng lí​kāi Rì​nèi​wǎ le.

   Looks like I'm not leaving Geneva empty-handed after all.

   Source: OpenSubtitles

3. 虽然忙活了半天，他的口袋里还是空空的。

   suī​rán máng​huo le bàn​tiān, tā de kǒu​dài lǐ hái​shi kōng​kōng de.

   Despite working for a long time, his pockets were still empty.

   Source: Dong Chinese Dictionary

4. 这种战斗机装备了最先进的空空导弹。

   zhè zhǒng zhàn​dòu​jī zhuāng​bèi le zuì xiān​jìn de kōng​kōng dǎo​dàn.

   This fighter jet is equipped with state-of-the-at air-to-air missiles.

   Source: Dong Chinese Dictionary