校园内已报告了许多欺凌事件。

There have been many reported ___instances of bullying on campus.

可能会有少数情况，理财顾问会推荐高风险策略。

There may be rare ___instances when a financial advisor recommends a high-risk strategy.

在这个例子中，软件崩溃是由内存泄漏引起的。

In this ___instance, the software crash was caused by a memory leak.