露齿裂嘴的

例句：

1. 1.She was so happy that she couldn't help but smile, revealing her teeth.
   她太高兴了，忍不住露出了牙齿。
2. 2.The children were laughing so hard that they were making their mouths open wide, looking like they were about to cry.
   孩子们笑得那么厉害，以至于他们张大了嘴巴，好像要哭出来一样。
3. 3. As the sun set, the sky turned into a canvas of colors, and everyone around me seemed to besmiling, showing their teeth.
   随着太阳落山，天空变成了一幅色彩斑斓的画布，周围的人似乎都在微笑，露出了牙齿。