In three separate field trials - the most recent in Sudan last year - Hassanali's team showed that even minute doses of PAN could stop hopper bands dead in their tracks and make them break ranks.
在分别进行的三个实地试验中—最近一次是去年在苏丹开展的—哈桑·纳尼的小组所展示的结果表明，即便是微量的PAN便可完全阻止蝗蝻带的行进，使其溃不成军。
Their families had given them up for dead, but they found a way to survive in what appeared to be one of the most impressive feats of endurance on the high seas.
家人都以为他们都死了，但他们却找到一条在大海上生存下去的活路。
Some of the plants are dead, but most of them are still living.
这些植物中有些已经死了，可是大部分还活着。
Most of the hot spots move only slowly, and in some cases the movement of the plates past them has left trails of dead volcanoes.
大多数热点移动非常缓慢，有时，板块滑过这些热点，就会留下死火山的痕迹。
Most of them are relatives of the first dead man.
他们大部分是首例死亡病例的亲戚。
Most of them are relatives of the first dead man.
他们大部分是首例死亡病例的亲戚。
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