The unarguable fact that most palaeontologists live in the rich world means two things.

大多物学家活在富裕世界这一无议事实意味着两件事。

Nevertheless, this tooth is the first unarguable proof that crocodilians did indeed snack on dinosaurs.

但无是，这颗牙是第一个鳄鱼目动物拿恐龙当点心证据。