求翻译：. v4 D9 C7 w) g7 r0 C6 f9 ^, c2 \这天是段考结束，朋友们跟我约好今天下午两点半要到好乐迪去狂欢到晚上，我高兴的回家先休息去，回到家才十二点而已，哥哥他们要在学校忙一下所以就晚一点才会回来。4是什么意思？

V4 d9 c7 w) the g7 r0 c6 f9, c2, \ This day is a monthly exam ended, the friends I made an appointment to the Melody go to carnival in the evening at 2:30 pm today, I am happy to go home to take a break to go back The home was twelve, my brother busy so will come back later in the school. 4