晚上是黑夜的开始。

Wǎnshàng shì hēiyè de kāishǐ.

Night begins in the evening.

夜晚的星空很美丽。

Yèwǎn de xīngkōng hěn měilì.

The night sky is beautiful.

我害怕黑夜。

Wǒ hàipà hēiyè.

I'm afraid of the dark night.