Definition
For a limited duration; for a certain period of time.
一时
He worked at a small company for a time before moving to a larger corporation.
他曾在一家小公司工作了一段时间，后来转到一家更大的公司。
The policy was in place for a time, but it was later found to be ineffective.
这项政策曾实施了一段时间，但后来被发现无效。
I studied the piano for a time, but I didn't continue with it.
我曾学习过一段时间的钢琴，但后来没有继续。