How big is 双腔龙?

美国的房子是越盖越大了. 在过去 40 年, 房子尺寸平均大了一倍! 这些房子这麽大, 你大 概可以塞 1000 个人进去! 只是会有点挤就是了.

橡树是一种可以活得很老的树, 能比任何人都活得久! 橡树一年可以长出几千个橡果, 橡果 大概就像冰块一样很讚喔.

One of the most famous and fearsome dinosaurs, T. rex lived during the Late Cretaceous (around 68–66 million years ago). As an apex predator, it measured up to 40 feet (12 meters) in length, stood about 13–15 feet (4–5 meters) tall at the hips, and weighed between 9–14 tons. It had powerful jaws lined with teeth capable of crushing bone, a robust skull, and tiny but functional arms. Its diet included large prey like hadrosaurs and ceratopsians.

A colossal sauropod dinosaur from the Late Cretaceous (about 100 million years ago), closely related to Argentinosaurus. Found in Patagonia, it is estimated to have reached lengths of up to 122 feet (37 meters) and weighed 55–77 tons. It was a slow-moving herbivore, relying on its size for protection against predators.

One of the largest known sauropods, Argentinosaurus lived during the Late Cretaceous (around 97–93 million years ago) in what is now South America. It could reach lengths of 98–115 feet (30–35 meters) and weigh as much as 100 tons. Argentinosaurus was a herbivore, with a long neck for reaching high vegetation and a massive, barrel-shaped body.

波音 747 是飞机的一种. 从 1969 年起, 它就比红杉还短一点. 而在那之前, 因为它尚未 存在, 所以也没有长短之别. 还有呢, 它的翼展比怀特兄弟所发明的第一架飞机(37 米)还 宽喔.