3 sentences

1. 飞蛾在灯光周围飞舞。

   fēi'é zài dēng​guāng zhōu​wéi fēi​wǔ.

   Moths are fluttering around the lights.

   Source: Dong Chinese Dictionary

2. 飞蛾正在孵化。

   fēi'é zhèng​zài fū​huà.

   Moths are hatching.

   Source: OpenSubtitles

3. 蚕的一生要经过几次变态才能变成蛾子。

   cán de yī​shēng yào jīng​guò jǐ cì biàn​tài cái néng biàn​chéng é​zi.

   A silkworm undergoes several metamorphoses before turning into a moth.

   Source: Dong Chinese Dictionary