2 sentences

1. 你不该作含糊不清的承诺。

   nǐ bù​gāi zuò hán​hú​bù​qīng de chéng​nuò.

   You should not make vague promises.

   Source: AI Challenger 2017

2. 说你想更健康是含糊不清的。

   shuō nǐ xiǎng gèng jiàn​kāng shì hán​hú​bù​qīng de.

   Saying that you want to be healthier is vague.

   Source: CCMatrix