进一退二法倍投法优点简介：He walked into the pavilion with others, and saw all the maids in red and male servants in black, all of them walking here with expressionless faces. He led him to the attic and saw the patient.
He walked into the pavilion with others, and saw all the maids in red and male servants in black, all of them walking here with expressionless faces. He led him to the attic and saw the patient.
