3 sentences

1. 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

2. 他因为血糖过低，突然在路边昏了过去。

   tā yīn​wèi xuè​táng guò​dī, tū​rán zài lù​biān hūn le guò​qu.

   He suddenly fainted on the roadside due to low blood sugar.

   Source: Dong Chinese Dictionary

3. 他最近总是头昏脑胀，无法集中注意力。

   tā zuì​jìn zǒng​shì tóu hūn nǎo​zhàng, wú​fǎ jí​zhōng zhù​yì​lì.

   Lately, he's been feeling dizzy and lightheaded, unable to concentrate.

   Source: Dong Chinese Dictionary