for a time
temporarily； for a certain period 一时地
This method was used for a time，but it is no use now ．这个方法曾被用于一时，但现在已不用了。
The boys stayed with their uncle for a time．孩子们有一段时间曾和他们的叔叔住在一起。
I couldn't remember his name for a time．我一时想不起他的名字了。
He was for a time a professor at Cambridge．他一度是剑桥大学的教授。