I wondered whether there might, after all, be some truth in the old chestnut that one's school days are the happiest of one's life.老话说学生时代是人一生中最幸福的时光，我在想这话是否有些道理。We've been mates since our school days.我们从学生时代起就是朋友。It's so hard getting the kids up on school days.叫孩子们起床去上学简直费死劲了！I wish I could go back to my school days.我希望能回到过去的学生时代。He remembered his school days with loathing.回想自己的学生时代，他心中充满厌恶。