awhile 和 a while 意思相同，但词性用法不同，判断的关键是看句中有没有介词 for, in 或 after，有的话就用 a while，否则用 awhile.一、awhile 是副词，通常跟在动词后面，相当于 for a while，例如： He worked awhile as a pharmacist in Cincinnati.他有一段时间在辛辛那提当药剂师。He fought with the urge to smoke one of the cigars he'd given up awhile ago。他努力克制自己的烟瘾，不去抽一支戒掉没多久的雪茄。Could you wait awhile?你能等一会儿吗？二、a while 是名词短语，通常跟在介词 for, in 或 after 后面，例如： I turned back after a while, but he kept walking.我过了一会就往回走了，但他还接着走。After a while, the sickness gradually passed and she struggled to the mirror.过了一会儿，她渐渐不那么恶心了，挣扎着到了镜子前。They walked on in silence for a while.他们继续默默无语地走了一会儿。She rested for a while, then had a wash and changed her clothes她休息了一会儿，然后洗了洗，换了身衣服。Once in a while she phoned him.她间或会给他打个电话。He would push or slap her once in a while他偶尔会推搡她或是打她的耳光。
