Definition
When a period of time rolls by, it simply passes.
时间流逝
As time rolls by, we find ourselves growing and changing.
随着时间流逝，我们发现自己成长和改变。
Looking back, many wonderful moments rolled by unnoticed.
回首过去，许多美好的时刻悄然而逝，未被察觉。
As the holiday rolls by, I feel a tinge of sadness.
随着假期流逝，我感到一丝悲伤。