用于现在完成时态.例:In the past few years they have been dealing with quite a few international corporations successfully.在过去的几年中他们与好几家跨国公司做生意一直做得很成功.He has shown his captai...for the past few years也是现在完成时吗？是的。The store's business has been on the downgrade for the past few years. 最近几年这家商店的生意每况愈下。