外来生物入侵，是对于一个特定的生态系统与栖息环境来说，非本地的生物（包括植物、动物和微生物）通过各种方式进入此生态系统，并对生态系统、栖境、物种、人类健康带来威胁的现象。
外来生物入侵是近年来生物安全领域的重要内容。
The external creatures invasion was the important part in the creatures security region in recent years.
不是唐山式的大地震、印度洋式的大海啸，而是外来生物入侵。
The answer is not the earthquake in Tangshan, nor the tsunami in the India Ocean, but the inbreak of exotic biology.
然而，即使所有的外来生物入侵者被移除，当地环境也只能恢复到原住民波利尼西亚人以前所塑造的那种状态，这些原住民在库克等人到来前已定居在此至少千年。
Yet even if all the invaders were removed, it would only return the islands to the state into which the Polynesians, who inhabited them for at least 1,000 years before Cook’s arrival, had shaped them.
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