He always comes on the days when I am busy这句中on the days怎样理解

He always comes on the days when I am busy这句中on the days怎样理解 on the days?in the days? in the days 还是on the days? When spring comes,the days get__and__(long). When winter comes,the days get ----. When summer comes,the days get_. I’ll never forget the days----I spent on the farm. A.when B. I always needed time on my own ,and the days feel like years 英语i shall never forget the days when we worked on the farm.定 求简体中文翻译 I am very busy on school days,but I have some free t When I think back on the days we spent together I just can n Gone is the days when I had to go to on foot 哪错了