????????????concept???????????indigenous speaker???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????It's possible you'll list any assumptions you may have made concerning the model. There is a two hundred-word limit for assumptions. Assumption

???? ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????7X24?????????10s??????????????????????????????????? ?????????? ?????????? ??????????????????? “????????”? ???????

“?????????????????????????????????????????????????????????????????”???????“????????????????????????????????????????????????”?????????????????????????????????????????????????“??”???????????——??“??”??????????????????????????????????????????????????“??????????”???????????????????? #?????? #?????? #??????????????????????????????