原文是讲一个小男孩父亲得了AIDS的故事,根据语境We couldn't afford all the necessary medication for him,and because Dad was unable to work.生活上的负担使他在课堂上会经常跑神儿.
因此这里的would是表示经常性或习惯性的行为,可译为“总会,总是”,这是would不常用的用法之一.在此举一简单的句子,Sometimes I would come home late. 跟上一句是同样的用法.可参考词典,把would 其他用法搞清楚.