noun · a bloody mouth wide open like a sacrificial bowl, typically referring to a beast of prey

猛虎张开血盆大口，发出一声震天的咆哮。

noun · figurative reference to a rapacious aggressor or an insatiably greedy person

这些贪婪的殖民者张开血盆大口，疯狂掠夺当地的资源。