潜水员在珊瑚礁附近发现了一条虎鲨，立即保持了安全距离。

The divers spotted a ___tiger shark near the coral reef and immediately kept a safe distance.

在华尔街，她因激进的交易策略被称为虎鲨。

On Wall Street, she's known as the ___tigershark for her aggressive trading strategies.