It supports your heel strike so that every time you pound your foot on the pavement it's more and more comfortable.

它支持你的脚后跟撞击，所以每次你脚踩在人行道上，它会变得越来越舒服。

Intagliata: So that helped them estimate the beat at which T. rex would have pounded its feet.

Intagliata：这有助于他们估计霸王龙跺脚的节拍。

Though triceratops is estimated to have been 30 feet long and more than 12,000 pounds, paleontologists say it was a plant eater.

虽然据估计三角龙有 30 英尺长，体重超过 12,000 磅，但古生物学家说它是食草动物。