n.防腐劑；預(yù)防法；預(yù)防藥

adj.保存的；有保存力的；防腐的

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為防腐劑。

For the first, the best preservative to keep the mind in health, is the faithful admonition of a friend. 說到第一種，最能保人心神之健康的預(yù)防藥就是朋友的忠言規(guī)諫。

The fact is that ascorbic acid is only the preservative part of naturally occurring vitamin C. 事實上，抗壞血酸只是天然維生素C的能夠保存的部分。

n.防腐劑；保存劑

名詞preservative的復(fù)數(shù)形式.