half an hour 与a half hour
问题描述：
half an hour 与a half hour
half an hour 是半个小时,但a half hour如何翻译呢,六人行里有这么一句 Oh God...well,it started about a half hour before the wedding.
答
half and hour 半个小时
a half hour 半小时（一个）
翻译成中文可以视为等同.