These carnivores live only on four small islands in the archipelago where, scientists note, the prey base is too small to support mammalian carnivore.
科学家指出,这些食肉动物只生活在群岛中的四个小岛上,那里的猎物基数太小,哺乳类食肉动物无法生存。
These electronic readers not only store books to show on a screen, they can also read them out loud.
VOA: special.2009.07.24
Now, you have to understand that the Treasury has these auctions only on these dates.
你们要清楚,国库券只在规定的日期中拍卖
Here's where the intelligence of the immune system comes in, is that these cytotoxic T-cells that are generated only kill cells that have this signal on it.
免疫系统的聪明之处就在此,这些细胞毒T细胞,只能杀死具有特殊标记信号的细胞
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