One of the station staff spotted that I was in difficulty, and came to help.

【spot】一位车站工作人员看到我有困难，就过来帮忙。

" Then it is a singular mistake that I have made there — for it is shared by the station staff. They say you arrived by the 11: 40 train" .

“那么这是我在那里犯的一个奇怪的错误——因为车站工作人员也有同样的错误。他们说你是乘坐 11 点 40 分的火车到达的” 。