大自然最让人惊叹的是它的无限多样性。The most amazing thing about nature is its infinite variety.我们一点都不抵触多样化；实际上，我们需要多样性更丰富一些。We have nothing against diversity; indeed, we want more of it.自然环境保护主义者大多致力于保持物种的多样性。Conservationists are mostly ...
The leader of the new republic had no choice but to ratify this treaty.新共和国领导人除批准此约外,别无它法.Since the lion has spared you, I will for this time ratify your pardon.既然狮子饶了你, 我这次也赦免你.The President can make treaties, but the S...
The collapsar model of gamma - ray bursts. Click on the image to view a 5 MB animation.γ射线爆发的黑洞模型. 那个5MB动画下载见下一楼.Magnetotactic bacteria ( MB ) belongs to Mycetozoan class with simple prokaryotic cell.趋磁细菌 ( MB ) 属变形菌纲,为简...