should的解释it will count for very little should they fall at t

首先,should they fall at the last hurdle这个句子是个虚拟语气的省略倒装句.原句应该是这样：if they should fall at the last hurdle.should 在这个句子里是不翻译出来的.详情可以查看语法书里“虚拟语气部分”