4 sentences

1. 我情绪不稳定？

   wǒ qíng​xù bù​wěn​dìng?

   Am I emotionally unstable?

   Source: OpenSubtitles

2. 不稳定似乎是21世纪生活的事实。

   bù​wěn​dìng sì​hū shì21 shì​jì shēng​huó de shì​shí.

   Instability appears to be a fact of life in the 21st century.

   Source: CCMatrix

3. 这是新西兰最不稳定的景观之一。

   zhè shì xīn​xī​lán zuì bù​wěn​dìng de jǐng​guān zhī​yī.

   This is one of the most unstable landscapes in New Zealand.

   Source: CCMatrix

4. 这里的移动互联网连接非常不稳定。

   zhè​lǐ de yí​dòng hù​lián​wǎng lián​jiē fēi​cháng bù​wěn​dìng.

   The mobile internet connection here is really unstable.

   Source: CCMatrix