But Matra's expertise was with two-car EMUs. It was the first time they had worked with the four-car trains required by Taipei City, and they evidently underestimated the difficulties involved.
然而馬特拉擅長的是兩車一組的電聯車，至於應台北市要求而做的四車一組，則是新的嘗試，其中的難度顯然被低估了。