Many carnivorous dinosaurs have ambiguous features, such as "peg-like" teeth at the front of the mouth, or no teeth at all.

许多食肉恐龙的特征并不是很明显，例如，要么在嘴的前部有“钉状牙齿”，要么就根本没有牙齿。

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But many theropod dinosaurs have ambiguous features, such as peg-like teeth at the front of the mouth, or no teeth at all.

但是，许多食肉恐龙的特征并不是很明显，例如：要么在嘴的前部有“钉状牙齿”，要么就根本没有牙齿。

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As an alternative, the teeth can extend from the peg, and the groove can be formed in the wall of the first component.

作为可选方案，所述齿能够从所述栓延伸，而且所述槽能够形成在所述第一部件的壁内。

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