5 sentences

1. 我眼神不好，看不清那边的字。

   wǒ yǎn​shén bù hǎo, kàn​bu​qīng nà​bian de zì.

   My eyesight is poor; I can't see the words over there clearly.

   Source: Dong Chinese Dictionary

2. 我没带眼镜，看不清黑板上的字。

   wǒ méi dài yǎn​jìng, kàn​bu​qīng hēi​bǎn shàng de zì.

   I'm not wearing my glasses, so I can't see the words on the blackboard clearly.

   Source: Dong Chinese Dictionary

3. 池塘里的水太浊，看不清底下的鱼。

   chí​táng lǐ de shuǐ tài zhuó, kàn​bu​qīng dǐ​xia de yú.

   The water in the pond is too murky to see the fish at the bottom.

   Source: Dong Chinese Dictionary

4. 天色已昏，远处的人影渐渐看不清了。

   tiān​sè yǐ hūn, yuǎn​chù de rén​yǐng jiàn​jiàn kàn​bu​qīng le.

   It was already getting dark, and the figures in the distance were becoming blurred.

   Source: Dong Chinese Dictionary

5. 这里的灯光十分昏昧，大家几乎看不清路。

   zhè​lǐ de dēng​guāng shí​fēn hūn​mèi, dà​jiā jī​hū kàn​bu​qīng lù.

   The lighting here is very dim, and everyone can hardly see the road.

   Source: Dong Chinese Dictionary