对气味不敏感 meaning in English

odour resistance

This may 16 explain why we are not usually sensitive to our own smells we simply do not need to be
这( 16 )也可以解释为什么我们通常对气味不敏感? ?只是因为我们确实没有这种需要。
The explanation for insensitivity to smell seems to be that brain finds it 14 to keep all smell receptors working all the time but can 15 new receptors if necessary
对气味不敏感的解释，好像是由于大脑发现保持全部嗅觉感受器持续工作( 14 )效率不高，但如果必要的话可以( 15 )产生新的感受器。