เทคนิคการเย็บ backdrop ผ้า
????????Backdrop ?????/????? ???????????????????????????? ????? ?????/???/?? ???????????????? ???????/???????/?? ???? ????????/?????/??????? ?????? ??????/?????????/????? ????? ???????/?????? ???? ????/??????????? ????, ???????? ???????/???????/??????????? backdrop, ??? ??????????/??????/??? ???