I try to protect my pure sky from being polluted by evil and falsity.

我固守那份纯净的天空，不让邪恶和虚伪轻易污染。

youdao

With the sky still aglow at 11 p. m. on Midsummer Eve, Danes build bonfires along the shore to burn effigies of witches, banishing evil spirits from the land.

借着仲夏夜晚上11点的天空中依然透出的红光，丹麦人在沿着海岸架起了篝火来焚烧女巫形象的假人来驱赶来自地下的恶魔。

youdao

He tries to protect his pure sky from being polluted by evil and falsity.

他固守那份纯净的天空，不让邪恶和虚伪轻易污染。

youdao

Beijing's night sky was lit up by thousands of exploding fireworks to scare off evil spirits.

VOA: standard.2010.02.14