Sub ex()
Set Rng = Range([C2], [C:C].Find("End", lookat:=xlWhole)) '設定尋找範圍
For Each a In Range([F2], [F2].End(xlDown)) '取代的數量
mystr = Join(Application.Transpose(Rng), "、") '???
a.Offset(, 2) = Replace(mystr, a & " ", a.Offset(, 1) & " ")
Next
End Sub