She beat off a challenge to her leadership.

她战胜了对她的领导地位的挑战。

Our soldiers beat off the attacks of the enemy many times.

我们的战士击退了敌人的多次进攻。

The bird may have been able to beat off predators such as snakes and monkeys

这种鸟可能能够打败蛇、猴等掠食者。

This was to beat off another rich Silicon Valley tycoon spending his own money, Steve Poizner.

这也打败了另外一位硅谷的工业巨头史蒂夫·鲍泽纳。

Now it was the weapons of finance that he used, cornering shares and launching blistering bear raids to beat off equally merciless rivals.

这一次他用的是金融武器：垄断股价，实行猛烈快速的“空头袭击”策略打退同样冷酷的竞争对手。