昆虫和蠕虫都是无脊椎动物。Insects and worms are all invertebrates.在蚯蚓和许多其它无脊椎动物中, 这些排泄结构称为肾管.In the earthworm and many other invertebrates, these excretory structures are called nephridia.公园里的本地特有的脊椎动物和无脊椎动物也很多.Endemism of vertebrate...
哥白尼同他的日心说理论就遭到过这样的遭遇.Such was the case with Copernicus and his theory that the earth revolves around the sun.他也提出以引力作用为基础的日心说, 比哥白尼早了几乎一千年.He also propounded the Heliocentric theory of gravitation, thus predating Coperni...
他们坚持要比淡而无味的英国货味道更好的巧克力。They insist on tastier chocolate than the anaemic British stuff.较大的公司能够提供一系列更好的服务。The larger firm was capable of providing a better range of services.通过采取更好的坐姿，你的腹部马上就会看起来平坦一些。You can make your sto...