ferocious

「ferocious」是「兇猛殘暴」或「聲勢浩大」，例如：

No enemy is so ferocious but that we can defeat it.（不管敵人多麼來勢洶洶，我們都能打敗他。）

These cries of ferocious challenge rang against walls of silence.（那猛烈的挑戰聲，在靜室屏壁之間回響。）

I could catch the glare of their ferocious eyes.（我連牠們那殘忍的眼睛中的灼灼目光，都看清楚了。）

safe and sound

「safe and sound」是「安然無恙、完整無損」，例如：

The rescuers brought the climbers back safe and sound.（救難人員把登山客都平安地救了回來。）

He telegraphed that they had arrived in London safe and sound.（他發電報告知他們安然無恙地抵達倫敦。）

The fragile china survived the bumpy journey safe and sound.（那批易碎的瓷器經過顛簸的旅途仍完好無損。）

furious

「furious」是狂怒，是生氣（angry）之外，附帶發洩情緒的粗暴行為，例如：

There seemed to be no way to escape the anger of this furious man.（似乎沒有辦法擺脫這怒漢暴跳如雷的行徑。）

He was certainly furious when he saw the mess.（他看到這個爛攤子，果然大發雷霆。）

A wild and furious war broke out.（一場狂暴猛烈的戰爭爆發了。）