He said his union, Local504 of the Transport Workers Union, made "massive contract givebacks"over the years to help Pan Am with its financial troubles. "It was all to no avail, "he lamented. 他说他的工会——运输工会504分会——历年来在合约上做了“极大的让步”以协助泛美［航空公司］纾解财务困难。“结果全然没用，”他哀伤地说。