freshness retaining

• 保鲜

freshness retaining的用法和样例：

例句

1. I keep a wary eye on the freshness date and examine the tamper-proof packaging.
   我会用机警的眼光查看商品的保鲜期以及包装袋上的防伪标记。
2. Payne has designed a new tear-tape system for opening hermetically sealed packs, which combines easy opening with airtight pack freshness.
   佩恩设计了一个新的催泪开放磁带系统的密封包装，方便开放相结合的密封包装保鲜。