for some time

基本解释

The close weather will last for some time.
这种闷热的天气将持续一段时间。
He considered the man for some time before speaking to him .
他打量了那人一会儿才跟他说话。
Gray worked for him in the early months of his campaign for some time, then became disillusioned, freaked out and joined another party.
格雷在他竞选的头几个月曾为他工作过一段时间，后来幻想破灭而很快加入了另一方。

The Federal Reserve suggested again that short-term interest rates are likely to remain near zero for some time.
Well a number of you have spent this past week playing with this particular tool which is a project the course has been working on for some time in an effort to make it easier and more social to actually shop for courses.
在过去的一周里,已经有一部分人开始使用这种特殊的工具了,这门课程一直在致力于这一工具的开发,目的是为了让课程变的更简单,选课更人性化。
哈佛公开课 - 计算机科学课程节选
For example, let's pretend that you are speaking with a friend who had been studying for a test for some time.
例如，我们假设你跟一位朋友在聊天，他已经为一门考试复习了好一段时间。
I'm sure 课堂 - SpeakingMax英语口语达人

Investors have been betting for some time that the worst is over for China.
FORBES: Recovery In China? Not So Fast