1·Our noses are able to recognise thousands of smells, and to perceive odours which are present only in extremely small quantities.
"我们的鼻子能够识别成千上万种气味，也可以感知那些极其微量的气味。
2·In fact, infants recognise the odours of their mothers soon after birth and adults can often identify their children or spouses by scent.
事实上，婴儿在出生后不久就能识别出母亲的气味，而成年人通常能通过气味识别出自己的孩子或配偶。
3·The perception of smell, therefore, consists not only of the sensation of the odours themselves, but of the experiences and emotions associated with them.
因此，嗅觉不仅包括对气味本身的感觉，还包括与之相关的生活体验和情感。
4·Nor can odours be recorded: there is no effective way to either capture or store them over time.
气味也不能被记录下来：没有有效的方法能够捕捉或储存它们。
5·Odours are also essential cues in social bonding.
气味也是社会联系的基本线索。