老鹰突然俯冲下来抓住了兔子。

The eagle ___pounced down and caught the rabbit.

这位投资人抓住了股市下跌的机会，迅速买入大量股票。

The investor ___pounced on the stock market dip to buy shares in bulk.

记者们立刻抓住他的口误大做文章。

The reporters ___pounced on his slip of the tongue immediately.