改错：if you would buy one box at the regular price,you would r

改错：if you would buy one box at the regular price,you would receive anothe

‘if you would 、、、’if从句引导条件状语从句,不需要would.去掉.
‘one box’表示泛指,这里应该是改成表个数的 a
‘the regular price’这里译为‘普通价格’应该是‘一个普通的价格’购买,不应该是特定‘那个普通价格’购买.the也换成a.