preservative

pri'zә:vәtiv

托福GRE Collins 1

n. a chemical compound that is added to protect against decay or decomposition
s. tending or having the power to preserve

a. 有助于保存的, 有保存力的
n. 预防药, 防腐剂

Collins 星级

20,370

BNC 频率

17,163

使用频率

preservative 由前缀 pre-（表示“在前”或“预先”）和词根 serve（表示“服务”或“保存”）及后缀 -ative（表示“具有…性质的”）构成，整体意思是“用于预先保存的物质”。

例句

1. Many processed foods contain preservatives to extend their shelf life.

许多加工食品含有防腐剂，以延长保质期。

2. Some people prefer to buy organic products because they usually have fewer preservatives.

有些人更喜欢购买有机产品，因为它们通常含有更少的防腐剂。

3. The label on the bottle lists all the ingredients, including the preservatives used.

瓶子上的标签列出了所有成分，包括使用的防腐剂。