A diplodocus dinosaur skeleton watches the entrance .
博物馆入口摆放着一座梁龙（diplodocus）骨架。
Sauropods like brachiosaurus and diplodocus were the biggest beasts to ever roam the earth .
像腕龙和梁龙这样的蜥脚类动物曾是体型冠绝地球的野兽。
The diplodocus is the longest dinosaur that was ever found !
梁龙是人们发现的最长的恐龙了！
Gary packard of colorado state university and his colleagues do not deny that creatures like apatosaurus , brachiosaurus and diplodocus were big-and bigger than any terrestrial mammal .
But if feathers truly are the diagnostic criterion , then perhaps things should be the other way round , and stegosaurus , triceratops , diplodocus , tyrannosaurus and their kin should no longer be thought of as terrible lizards , but as overweight , flightless birds .
