3 sentences

1. 猎户座星云用肉眼就能看见。

   Liè​hù​zuò xīng​yún yòng ròu​yǎn jiù néng kàn​jiàn.

   The Orion Nebula is visible to the naked eye.

   Source: Dong Chinese Dictionary

2. 冬季的星空里，猎户座最容易辨认。

   dōng​jì de xīng​kōng lǐ, Liè​hù​zuò zuì róng​yì biàn​rèn.

   Orion is the easiest constellation to identify in the winter night sky.

   Source: Dong Chinese Dictionary

3. 猎户座的三星在冬日的夜空中非常容易辨认。

   Liè​hù​zuò de sān​xīng zài dōng​rì de yè​kōng zhōng fēi​cháng róng​yì biàn​rèn.

   The three stars in Orion's Belt are very easy to identify in the winter night sky.

   Source: Dong Chinese Dictionary