再多几天英语

You can spend several more days to read this book

Professor remind you The perfect answer is: one more weekIf you have any question, please add me

你好，a couple of days 表示两三天，几天加上more表示，再多一点再多几天谢谢提问，望采纳！

for a couple of more days.再等几天

就是稍微再多等几天的意思，A couple of 是量词，表示一两天，两三天的意思。