When the event occurs.

当事件发生时。

youdao

And it'll be some time before another such event occurs.

而且，在未来某个时间，这样的事件还会发生。

youdao

When this event occurs, the client creates a log entry for auditing.

当此事件发生时，该客户机创建审核日志条目。

youdao

"That will be something we won't know until the event occurs."

VOA: standard.2010.06.08

G2 is a phase that indicates the gap between when DNA synthesis occurs and when the next mitotic event occurs.

2期是在DNA合成期完成后,到分裂期开始前的间期

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"So,when an event like this occurs, it is incumbent upon a Democrat to react quickly and decisively, and Obama failed to do it."

VOA: standard.2010.01.06

The ominous-sounding event occurs when the 50-day moving average crosses below the 200-day moving average.

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But the travel schedule gets rough, since that event occurs every 53 hours.

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The next major event occurs in November, when many employees will get their first chance to sell.

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