“我们的技术是非侵入式的，”何教授说。

"Our technique was noninvasive," said Professor He.

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“我们需要控制各种开发活动的侵入，”他说。

"We still need to control the encroachment of other development," he said.

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麦克·金南博士说，侵入性外来物种问题最令人不安的特点之一是，它们在全球范围内的数量不断增加。

MacKinnon says one of the most disturbing features of the problem of invasive alien species is that they are on the rise globally.

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