Pls identify yourself next time. It's not about ur English.Promotion bump is lifted sales due to promotion. For example, increased sales units due to price reduction.句中的 "... is lifted ...” 疑为 "... has lifted ..."。 下次请把你自己弄弄明白,不是你的英语。由于促销活动,促销风波提高的销售量。例如,降价提高了销售量。...