面临如此多的危险，因纽特人决心在揭开北极气候变化之谜方面发挥关键作用。
With so much at stake, the Inuit are determined to play a key role in teasing out the mysteries of climate change in the Arctic.
博物学家们普遍认为，当狼群之后抵达该岛时，它们将在控制驼鹿数量方面发挥关键作用。
When wolves later reached the island, naturalists widely assumed that the wolves would play a key role in controlling the moose population.
因此，OTA可以在这方面发挥关键作用。
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