保鲜 bǎoxiān HSK7 keep fresh Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 这种包装袋可以延长食物的保鲜时间。 zhè zhǒng bāozhuāngdài kěyǐ yáncháng shíwù de bǎoxiān shíjiān. This type of packaging can extend the shelf life of food. Source: Dong Chinese Dictionary