1,a three-day holiday 的 a 一定要加的2, I think a three-day holiday is too short for travel and therefore we didn't go out.3, It's wonderful for you to have a three-day holiday.We don't have a day...嗯。谢谢帮忙。看您给的翻译中，如果 three-day holiday 不加a, 也要有 其他的限定词是吧。比如 the ?holiday 如果用 vacation 替换也可吧。多谢是的，the 也可代替a。holiday一般可以用vacation 替代，不过节日一般会用holiday而假期（比如年假）一般会用vacation。