诸如此类的问题意味着对嗅觉心理学的兴趣将不可避免地对研究人员起着越来越重要的作用。

Questions like these mean that interest in the psychology of smell is inevitably set to play an increasingly important role for researchers.

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他们对保卫和平起着越来越重要的作用。

They are playing an increasingly important part [role] in safeguarding peace.

《新英汉大辞典》

但起着越来越重要的作用。

However, that's a far more important role to play.

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