What's this bug called? What environment did you grow up in?

Centipede! Scientific name Ma Lu, harmless. I like wet environment, generally live on the lawn soil surface, under clods and in dark corners, and like night activities, especially after rain, when wet weather is easy to break out in a large area. It can be found in most parts of the country.

Ma Lu is a kind of micro-toxic organism, which is basically harmless to human body, but it can secrete toxins that can cause local irritation when exposed, and can cause erythema in severe cases, so it can be washed with soapy water.