1. aroma:refers to a strong, pervasive, pleasant odour, such as that given off by burnt good pipe tobacco, coffee, or appetizing food. 指一种强烈的、弥漫的香味,如烟叶、咖啡或美味食品的香味。
2. scent: refers to an odour, natural or artificial, delicate and often pleasant. 指天然或人造的淡淡幽香
3. perfume: refers to a sweet smell esp. from an essence of flowers. 指香味,尤指由花精中所散发的香味。
4. fragrance: refers to a sweet or pleasant smell, and stresses a delicate smell from plants. 指甜美的香味,特指植物的清新香味。