What is tricky?

Tricky refers to some shady, secretive and secretive black-box operations. It also refers to the clues, loopholes and unreasonable aspects of things

Old Beijing dialect has also spread to other places, such as Tianjin and Shanghai. Refers to the clues, loopholes and unreasonable aspects of things.

"Tired" is a myth of "drowning". Drowning can be pronounced niào, just like "urine". So "Jin" is cat urine. Friends who have owned cats know that cats like to cover their feces with debris. That's how cat litter is used.

So tricky refers to some shady and secretive black-box operations, such as black whistle.