The student asks the teacher: Teacher, why the planes never run into the stars when flying in the sky?
The teacher answer: Because the stars can dodge.
To understand this properly you need to pay attention to the word 闪 shǎn.
In Chinese, 闪 means a sudden flash of light.
However, in this case it uses a different meaning: 闪避 shǎn bì = 躲避 duǒ bì = to dodge quickly.