How can there be a typhoon sound when the toilet flushes it

My toilet will hear the automatic flush, but I can't see the water coming out from above, what's going on? Please tell me, okay?

The dark and humid environment is prone to insects, so it is recommended to clean and spray frequently.

It's usually a small, black worm, about half a centimeter long, as thick as a needle, and if it is, it's a moth midge or a mosquito larvae, and it's good to clean it up with a powerful disinfectant that is harmless to humans.

The bathroom is more humid, it is recommended to ventilate frequently, because the bathroom is more humid, there should be insects in summer, and they like to shade and damp places, and the bathroom is like this.

This is also where the habit of scorpions lies: they like the tide and are afraid of dryness.