上学的前一天晚上用英文怎么说

"The night before school" 的英文表达是 "the night before school starts" 或 "the evening before school begins". 来源是因为这个短语表达的是学校开始上课之前的那一晚。

例句：

I always get nervous the night before school starts. (我总是在学校开始之前那个晚上感到紧张)
My mom always helps me pack my bag the evening before school begins. (我妈妈总是帮我在学校开始之前那天晚上整理书包)
I try to get a good night's sleep the night before school so I can be focused in class. (我试着在学校开始之前那个晚上睡个好觉，这样我就能集中精力上课)