进一退二法倍投法8码

简介：The tunnel was dark and only lit by torches. Working in such an environment, everyone felt depressed and could not tolerate any disturbance. Therefore, it was not that the voices of the engineers were too loud, but that everyone was too nervous. Following that Looking forward and to the side pointed by the engineer, sure enough, there was a thin stream of water gurgling out from the gap in the bracket plate.