The MRI missed a clot in his upper spine. 核磁共振遗漏了他脊髓上部的栓塞
The older male eventually begins to gain the upper hand. 年长的雄羚羊最终开始占据上风
They invade the upper branches, where they climb out of their external skeletons and assume their adult winged form. 占据上端的树枝后 若虫开始进行转变到蝉的蜕皮动作
Since parasites like these stop any one group of animal getting the upper hand. 这种寄生虫能阻止某种生物种群的优势
Invertebrates dominate these upper reaches. 无脊椎动物统治着上游河段
In their upper reaches, mountain streams are full of energy. 上游地段的山涧充满活力
and when the cold bites they have these upper slopes to themselves. 每当严寒袭来 这些山坡就成了它们的天下
Only now can mountaineers reclaim the upper reaches. 山地动物只有此时才能 向更高的地方拓展疆土