Definition
When a situation unfolds to the point where no further progression is possible and it diminishes in importance.
自行演变直至结束，且不再重要
After months of conflict, the situation eventually played itself out to a point of resolution.
经过数月的冲突，局势最终发展到了一个解决的阶段。
The debate played itself out after intense discussions, eventually diminishing in importance.
在激烈的讨论之后，辩论逐渐减弱，最终不再重要。
Over time, the issue played itself out and gradually faded from public attention.
随着时间的推移，这个问题逐渐淡化，不再受到公众关注。