来来往往

In the Gulf of Mexico, trawlers ply back and forth year in year out, hauling vast nets that scarify the seabed and allow no time for plant and animal life to recover.

在墨西哥湾，拖网复一来来往往地“辛勤”劳作，拖着巨大的网，刮破了海底，没有给动植留下恢复的时间。