Definition: during a particular period of time Level: B1
我整个夏天都在西雅图。
I was in Seattle ___over the summer.
我们吃午饭时讨论了这件事。
We discussed the matter ___over lunch.
观察婴儿如何随着时间的推移而变化和发展是很有趣的。
It's fascinating to watch how a baby changes and develops ___over time.
