露出獠牙：显示敌意或威胁的表情或行为。
...he white feather 畏缩不前，显示胆怯或懦弱（这个说法来自斗鸡，如鸡的羽毛出现白色，显示饲养得不好） show one's teeth 发怒 ..
... a dog has two tails欣喜若狂 show one's teeth暴怒 remedy治疗疾病的良方，成功解决问题的方法 ...
... 龇牙 snag 龇牙咧嘴 show one's teeth 龇牙瞪眼 gnash the teeth and stare in... ...
... fight tooth and nail 猛烈作战；拼命打； show one's teeth 发怒；呲牙咧嘴； grind one's teeth 磨牙；咬牙切齿； ...