n.防腐剂，保护剂
adj.防腐的，（能）保存的，储藏的，有保护力的

原形：preservative复数：preservatives

Salt is used as a preservative in the food processing industry.
盐在食品加工业中被用作防腐剂。
The body has been treated with preservative.
尸体经过了防腐处理。
The food does not contain any artificial preservatives.
本食品不含任何人工防腐剂。
The jam contains no artificial preservatives.
这种果酱不含人造防腐剂。
Sodium benzoate is a common preservative used in food products.
苯甲酸钠是食品中常用的防腐剂。
Adding salt to the meat acts as a natural preservative.
向肉中加盐起到了天然防腐的作用。
To extend the shelf life of cosmetics, manufacturers often add preservatives.
为了延长化妆品的保质期，生产商常会添加防腐剂。
The wine's high alcohol content serves as a preservative.
这种酒的高酒精含量有防腐作用。
Some people prefer to buy organic products that are free from preservatives.
有些人更喜欢购买不含防腐剂的有机产品。
The use of chemical preservatives in skincare products can cause skin irritation for some individuals.
护肤品中使用化学防腐剂可能会引起某些人的皮肤刺激。
Pickling vegetables involves submerging them in vinegar, which acts as both a flavoring and a preservative.
腌制蔬菜包括将它们浸泡在醋中，醋既可调味又可作为防腐剂。
The ancient Egyptians used natron as a preservative during the mummification process.
古埃及人在制作木乃伊的过程中使用了天然碱作为防腐剂。
Preservatives help prevent the growth of bacteria and fungi in pharmaceutical preparations.
防腐剂有助于防止细菌和真菌在药物制剂中的生长。