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

大多数古生物家生裕世界这一无可争议事实意味着两件事。

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

但无可争辩是，这颗牙是第一个鳄鱼目动物拿恐龙当点心证据。