The distinction only matters if a single event will be observed from multiple places in the document tree.

只有需要从文档树中的多个位置观测一个事件时才会造成区别。

youdao

As each event (a statistical data point) is observed, it is transformed into a TPTP statistical model event on-the-fly.

随着对每个事件(统计数据点)的观测，这些事件被匆忙地转换为TPTP Statistical模型事件。

youdao

We emphasize most strongly that this event is only possible (having been observed in Looking Glass devices in a possible future)... and, importantly, is now evaluated to be unlikely11.

我们最强烈地强调：这一事件只是可能发生的(已经通过窥镜装置观察到在可能的将来发生)…重要的是，现在评价结果为不大可能发生[11]。

youdao

Detecting the Higgs boson takes a lot of particle collisions -- there's only one observed event in every trillion proton-proton collisions, CERN said.

CNN: Scientists more certain that particle is Higgs boson

The hope is that by comparing the different pre-fall projections with the observed re-entry data after the event, future modelling efforts can be finessed.

BBC: Video tracks stricken Mars probe

During the event on October 21, 2011, an undercover FBI employee observed "four suspicious males with walkie-talkie radios around their necks, " the complaint says.

CNN: 5 arrested in alleged plot to blow up Cleveland-area bridge