But, it was the maniraptorans with beaks, not the ones with teeth, that survived the extinction event.

但是，在灭绝事件中幸存下来的是长着喙的手盗龙，而不是长着牙齿的手盗龙。

Leading up to the end-Cretaceous extinction, teeth were going strong in the ancestors of birds - the maniraptorans.

在白垩纪末期灭绝之前，鸟类的祖先——手盗龙的牙齿正在变得坚固。