preservative
n. 防腐剂；预防法；预防药
adj. 保存的；有保存力的；防腐的
近义词：protective，antibacterial，antifungal，stabilizing，additive，preserver，Enumber，stabilizer，
英英释义
Noun
- a chemical compound that is added to protect against decay or decomposition
Adjective
- tending or having the power to preserve;
"timbers should be treated with a preservative substance"
例句
用作名词(n.)
- Salt is a common food preservative.盐是一种常用的食物防腐剂。
- It is used as a preservative in certain acid food products.在某些酸性食物制品中它被使用作为防腐剂。
- For the first, the best preservative to keep the mind in health, is the faithful admonition of a friend.说到第一种，最能保人心神之健康的预防药就是朋友的忠言规谏。
用作形容词(adj.)
- The fact is that ascorbic acid is only the preservative part of naturally occurring vitamin C.事实上，抗坏血酸只是天然维生素C的能够保存的部分。