certain smell-sensitive
某些嗅觉敏感
以上为机器翻译结果，长、整句建议使用 人工翻译 。
However, it had been found that even people insensitive to a certain smell at first can suddenly became sensitive to it when exposed to it often enough.
然而研究发现尽管人们起初对特定的气味不敏感，但经过长时间在该气味下的曝露，人们也会对这种气味敏感。
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