"bare your teeth" in Chinese (Simplified)
露出牙齿（表示威胁）
Definition
像动物一样愤怒或威胁地露出牙齿，用来警告或吓唬别人。也可以形容某人表现出攻击性或准备争斗。
Usage Notes (Chinese (Simplified))
主要用来描写动物或比喻人表现敌意和攻击性。比较正式或文学用语，日常口语不常见。常用在“狗露出牙齿”等结构里。不要和友好的微笑混淆。
Examples
The dog bared its teeth at the stranger.
那只狗对陌生人**露出了牙齿**。
When he felt threatened, he bared his teeth.
当他感到受到威胁时，他**露出了牙齿**。
The lion bares its teeth to warn others.
狮子**露出牙齿**来警告其他动物。
The company finally bared its teeth in the legal battle.
公司在法律斗争中终于**露出了牙齿**。
When negotiations failed, both sides bared their teeth.
谈判破裂后，双方都**露出了牙齿**。
You don't have to bare your teeth every time someone criticizes you.
别人批评你时，你不必每次都**露出牙齿**。