YSK: Most grocery stores will mark down scalable foods (beef, chicken, pork) up to 40% if the item is within 2 days of the sell by date
from /r/YouShouldKnow
YSK：如果商品在销售日期的2天内，大多数杂货店会将可扩展的食品（牛肉、鸡肉、猪肉）标价高达40%。
YSK：如果商品在销售日期的2天内，大多数杂货店会将可扩展的食品（牛肉、鸡肉、猪肉）标价高达40%。
YSK: Most grocery stores will mark down scalable foods (beef, chicken, pork) up to 40% if the item is within 2 days of the sell by date
from /r/YouShouldKnow