Exposures to odors in natural environments often occur over far longer periods, and the resulting adaptations may differ qualitatively from short-term olfactoryadaptation.
Because of something called olfactoryadaptation, you never know quite how strongly your fragrance smells either - after a few minutes of exposure to a smell, it becomes 80 percent less powerful.
由于嗅觉适应,你永远都不知道自己喷的香水有多香,在闻过几分钟之后,香味对你来说就散掉了80%。
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The fragrances were selected to test their ability to block underarm odour through a method known as olfactory cross-adaptation.