extinction of spark

例句：

1. 1. The extinction of thedinosaurs has left avoid in our understanding of Earth'shistory.
   恐龙的灭绝使我们对地球历史的理解出现了空白。
2. 2. The extinction of thedinosaurs has left a voidin our understanding of Earth's history.
   恐龙的灭绝使我们对地球历史的理解出现了空白。
3. 3. The extinction of the dinosaurs has left a void inour understanding of Earth's history.
   恐龙的灭绝使我们对地球历史的理解出现了空白。